FORM TWO BIOLOGY EXAMS SERIES


image THE PRESIDENT’S OFFICE MINISTRY OF EDUCATION, REGIONAL ADMINISTRATION AND LOCAL GOVERNMENT

COMPETENCY BASED SECONDARY EXAMINATION SERIES

BIOLOGY FORM TWO

TIME 2:30 Hours                                                                                               Nov 2022              

INSTRUCTIONS

1. This paper consists of sections A, B and C with a total of ten (10) questions. 

2. Answer all questions in each section. 

3. Section A carries fifteen (15) marks, section B seventy (70) marks and section C carries fifteen (15) marks. 

4. All writing must be in blue or black ink except drawings which must be in pencil. 

5. Cellular phones and any unauthorized materials are not allowed in the examination room. 

6. Write your Examination Number on the top right on every page. 

 

SECTION A: (15 MARKS)

Answer all questions in this section

1.  For each of the following items (i) — (x) choose the correct answer among the given alternatives and write its letter in the box/ space provided

(i)A form four student who was in laboratory using light microscope, complained that his microscope was not functioning properly since the specimen under observation was not seen clearly. Which part among the following was not functioning properly?

A.    Arm

B.    Body tube

C.    Mirror

D.    Objective lens

E.     Revolving nose piece

(ii) A relationship between living organisms where one organism benefits and the other does not benefit and is not harmed is known as:-image

A. Parasitism B. Commensalism

C.    Mutualism

D.    Neutralism

(iii) When giving first aid to a person stung by a bee, the sting should be removed by scraping gently using:-

A.    Blunt objects

B.     Fingers

C.     Sharp objects 

D. Syringes

(iv)  Mr Maleko has been suffering from Goitre, which nutrient is missing in his diet?

A.    Carbohydrate

B.     Vitamin E

C.     Vitamin C 

D.      Iodine

(v) As a form two student, how can you assist a form one student on picking one of the most efficient way of preventing STI's among the following:-

A.    Protected sex

B.     Take a balance diet

C.     Abstain from sex

D.    Avoid sharing of razor blades

(vi)  The kingdom in which its members (organisms) store food as glycogen and reproduce using spores is

A. Kingdom Plantae 

B. Kingdom Fungiimage

C.    Kingdom Monera

D.    Kingdom Protoctists

(vii) Which part of the plant cell contain non — living component:-

A.    Cell wall

B.    Cell membrane

C.    Nucleus

D.    Chloroplast

(viii) The process by which respiratory gases diffuse in and out of the respiratory   imagesurfaces is called:-

A.    Inhalation

B.     Exhalation

C.     Respiration

D.    Gaseous exchange

(ix) Amoeba is a causative agent of a gastric disease called amoebic dysentery, this causative agent is an organism that belongs to which kingdom among the following:

A. Animalia

B. Plantae 

C. Protoctista 

D. Monera

(x) Which of the following is responsible for protecting the body against pathogens?

A.    Leucocytes

B.     Thrombocytes

C.     Erythrocytes

D.    Lymph

2.  Match the phrases in list A with the responses in list B by writing the letter of the correct response in list B below the corresponding phrase number of list A in the table provided.

LIST A

LIST B

  1.         An important nutrient for body growth and repair of worn out cells and tissue
  2.      An or an which stores bile
  3.    An organic nutrient that an organism requires in small quantities.
  4.    Responsible for absorption of digested food nutrients .
  5.       A substance that is important in the diet that helps in the smooth movement of food in the digestive system
  1. Micronutrient
  2. Microvillus
  3. Trypsin.
  4. Roughages.
  5. Liver
  6. Carbohydrate
  7. Protein
  8. Gall bladder
  9. Nutrients
  10. Stomach.

SECTION B: (70 MARKS)

Answer all questions from this section

3.  (a) Give the meaning of the following terms

(i)   Biology

(ii)Classification...

(b)What is studied about, in the following branches of biology?

(i)          Microbiology

(ii)        Ecology

(iii)     Entomology

(iv)     Mycology

(c)  Name the two parts that make up the scientific names of living organisms

4.  (a) Differentiate between photosynthesis and respiration

 (b)Name two factors which affect the rate of respiration

(c)  Mention two raw materials needed for photosynthesis to take place

(d)A bread was put in a wet cupboard. After a few days, black thread -like structures which ended up in club - like shape appeared on the bread

(i) Suggest the common name of the organism that grow on the bread surface

(ii)        Name the kingdom in which the observed organism belongs

(iii)     Name the phylum or division in which the observed organism belongs

 

 (iv) Suggest one advantage of the members of the kingdom you mentioned in (ii) above

5.  (a) Where can you see the following safety signs in real life situations

(i)     Slipery floor

(ii)   Flammable

(iii)  High voltage .

(iv)Strong radiation . 

(v) Biohazard .

(b)The steps in the scientific methods in each of the following situations are not in the imagecorrect order. Re - arrange them correctly basing on the knowledge of scientific method

(i)          The laboratory technician diagnose malaria parasite in John's blood

(ii)        The doctor orders John's body temperature, blood and urine samples for observation in the laboratory

(iii)     The doctor asks John several questions about how he feels

(iv)     The doctor confirms that John has malaria and prescribes medicine for him

(v)        John is not feeling well, he goes to see a medical doctor at a nearby hospital

6.  Study the following diagram and then answer the questions that follow:

image

Figure 1

(a)   (i) What is the name of the above diagram?

(ii)     Label the parts marked A, B, C, D

(iii)   Write down two differences between arteries and Veins

Arteries

Veins

 

 

 

(b)   Give one function for each of the following blood cells (i) Red blood cells .

(ii)     White blood cells...

(iii)   Blood platelets

7. (a) Explain the following facts with regard to ecosystem

(i)     Why food web is said to be interconnection of food chain? .

(ii)   Competition is important in an ecosystem........

(iii)   Ecological pyramid is pointed at the top and wide at the bottom....

(b) Construct a simple food web from the following organisms:

(Mucor, leopard, zebra, deer, lion and shrubs)

image 8. (a) Identify the process by which food is broken down into a simple form that can be used by living organisms.........

(b)Why are cows and goats called ruminants?

(c)  How can you differentiate the stomach of a cow from that of human being?

(d)Jacob complains of having a painful burning sensational around the oesophagus whenever he eats spicy food. He also has a problem of passing out very hard stool (i) Suggest the possible disorders he is facing (a)..

(ii) What would you advise him in order to alleviate the problem

(a)..

(b).....

9. (a) Khadija is a teenager girl, her parents are complaining on her that, she is dirty and has bad dressing code and bad life style in general. As a form two student identify the kind imageof behaviour and hygiene that Khadija is displaying/ showing 

(i) Behaviour............ ...  

(ii) Hygiene...

(b)  Name two diseases that may be caused by lack of personal hygiene during puberty

(c)   State four bad habits you have seen in your age — mates at home or school

 

SECTION C: (15 MARKS)

10. Corona is a wide spread problem in the world. Countries have attempted to eradicate the disease but they have not been very successful. As a form two biology student, educate your community about corona disease using the following guidelines:

(a)   Causative agent

(b)  Made of transmission

(c)   Symptoms (04 points)

(d)  Side effects (02 points)

(e)   Prevention measures (04 points)

 

LEARNINGHUBTZ.CO.TZFORM TWO BIOLOGY EXAM SERIES 122


 THE PRESIDENT’S OFFICE

REGIONAL ADMINISTRATIVE AND LOCAL GOVERNMENT

FORM TWO EXAMINANTIONS SEPT 2022

NEW NECTA FORMAT

Time: 02:30 Hours                                                                               

INSTRUCTIONS

1. This paper consists of sections A, B and C with a total of ten (10) questions.

2. Answer all questions in sections A and B and  C.
3. Section A carries 15  marks, section B seventy  (70) marks and section C (15) marks.
4. All writing must be in black or blue ink except drawings which must be in pencil.
5. Cellular phones and any unauthorized materials are not allowed in the assessment room.
6. Write your Assessment Number at the top right corner of every page.

SECTION A (15 Marks)

Answer all questions in this section.

1. For each of the item (i)-(x), choose the correct answer from among the given alternatives and write its letter in the box provided

  1. A room designed for experiments and observation of samples is known as
  1. Hospital                            
  2. Classroom     
  3.  Laboratory                     
  4.  Pharmacy 
  1. Which substance can be tested by using Benedict’s solution
  1. Reducing sugar                
  2. Starch       
  3. Lipids                                  
  4.  Protein
  1. The highest rank of classification is known as
  1. Class                                        
  2. Species                             
  3. Kingdom                                     
  4. Phylum
  1. If a child have a swollen abdomen thin arms and leg and weak and brownish  hair is likely to have which nutritional disorder
  1. Marasmus                               
  2. Kwashiorkor
  3. Obesity                               
  4. Rickets
  1. The main reason for keeping food on refrigerators is to make it
  1. Cold.                                         
  2. Last longer  
  3. Sweet                                   
  4. Soft
  1. Absorption of food in alimentary canal take place in the
  1. Colon                                      
  2. Duedunum
  3. Stomach                                    
  4.  Ileum  
  1.                     Which of the following is NOT a field of study related to biology
  1. Agriculture                                                 
  2. Nutrition    
  3. Astrology                                                  
  4. Medicine
  1.                   COVID 19 is a disease which caused by
  1. Virus                                                           
  2. Amoeba    
  3. Bacteria                                                      
  4.  Plasmodium
  1. Which of the following enzymes is produced in the Mouth
  1. Lipase.                                                        
  2.  Salivary amylase  
  3. Sucrose.                                                     
  4. Trypsin
  1. Which of the following is NOT a component of first aid kit?
  1. Bandage                            
  2. Microscope
  3. Soap                                 
  4. Panadol

2. Match the phrase in LIST A with responses in LIST B by writing the letter of the 

correct response in LIST B below the corresponding phrase number of LIST A in  table provided.

LIST A

LIST B

 

  1. A disease characterised by fever and prolonged coughing with blood sputum.
  2.  A disease transmitted by an agent known as anopheles.
  3. A viral disease transmitted through sexual intercourse
  4. .A disease caused by lack of proper hygiene and victim  had a stool of rice-water colouration
  5. A disease transmitted through sexual intercourse and treated by antibiotics

A. Cholera
B. Typhoid
C. AIDS
D. Malaria
E. Syphilis 
F. Influenza
G. Schistosoma
H. Tuberculosis 

 

Answers

LIST A

  1.  
  1.  
  1.  
  1.  
  1.  

LIST B

 

 

 

 

 

 

SECTION B (70 Marks)
Answer all questions in this section.

 

3. For each of the items (i)-(x) write TRUE if the statement is correct or FALSE if the  statement is incorrect in the spaces provided.
   i. All green plants are decomposers………………………………………………………
   ii. The use of unsterilized equipments can lead to HIV/AIDS transmission………...
  iii. Fern plant belong to division pteridophyta……………………………………….………
   iv. Salting and drying are modern method of food preservation……………..….………
   v. Syphilis is a communicable disease……………………………………………………….
   vi. Handlens makes object look bigger than normal size……………………………......
  vii. Epiglottis is the structure that allow entrance of food to the trachea……………
  viii. Plant cell lack chloroplast…………………………………..………………………..
   ix. Good manners involves talking while eating………………….…………………………
    x. Calcium help to strengthen teeth and bone…………………………………………….

4. (a) Complete each of the following statements by writing the correct answer in the  spaces provided:
      i. Magnifies the specimen under observation…………………………………..
      ii. Raises or lowers the body tube in order to bring the image into sharp focus……
     iii. Surface on which the specimen to be observed is placed……………………………
     iv. Reflects and directs light to the specimen under observation………………………
    v. Regulate amount of light passing from the mirror to the condenser………………

(b)  How do the following factors affect the rate of photosynthesis?

(i) Chlorophyll

(ii) Sunlight

(iii) Carbon dioxide

 

5. (a) Write the meaning of the following words:

i.Biology ……………………………………………………………………………………….…………………………………………………………………………………………………………………………………………………………………………………………………….............................................

ii. Zoology …………………………………………………………………………………………………
…………………………………………………………………………………………………
(b) Why do we study Biology? Give two reasons.
i. …………………………………………………………………………………………………

ii. …………………………………………………………………………………………………

6. The figure below represents a diagram of a simple animal cell. Study the diagram then answer the questions  that follows:

 

a) Name the part labelled with letters A, B and C

A …………………………………………………………………………………………

B …………………………………………………………………………………………

C …………………………………………………………………………………………

 

b) Give TWO functions of the part labelled C

(i) …………………………………………………………………………………………….

(ii) …………………………………………………………………………………………….

c) Give three differences between animal cell and plant cell.

     Animal cell

Plant cell

 

 

 

 

 

 


7. (a) Define the following terms:

i.Ecosystem………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………
ii. Population

………………………………………………………………………………………………………………
………………………………………………………………………………………………………………
iii. Ecology

………………………………………………………………………………………………………………………………………………………………………………………………………………………………

iv.Habitat ……………………………………………………………………………………………………………………………………………………………………………………………………………………

(b) Explain the role of each of the following organisms in the ecosystem.

i.Decomposers…………………………………………………………………………………………………………………………………………………………………………………………………….
ii. Producers ………………………………………………………………………………………………………………………………………………………………………………………….
(c)(i) Construct a food web using the following organism,  maize, stolk bore, salamanda, mouse,bacteria snake and hawk

 (ii) From the food web above in (c) (i) identify the following:

     a. Producer.................................................  
     b. Decomposer.................................................

8. If you put a piece of bread in a wet cupboard after a few days the breast will be  covered with organism called fungi.

  a) Give the common name of these fungi which grow bread 

……………………………………………………………………………………………
b) Outline the three phyla of the Kingdom fungi
i. …………………………………………………………………………………………………
ii. …………………………………………………………………………………………………
iii. ………………………………………………………………………………………………

c) Outline five advantages of Kingdom fungi
i. ………………………………………………………………………………………………
ii. ……………………………………………………………………………………………….
iii. ……………………………………………………………………………………………….
iv. ………………………………………………………………………………………………..
v. ……………………............……………………… ……………………...................................

9.(a)Define The Following

  1. Capillarity……………………............……………………… ……………………...................................
  2. Transpiration pull

……………………............……………………… ……………………............................................ ……………………............……………………… ……………………...................................

  1. Blood circulation

……………………............……………………… ……………………...................................

                   …………………………………………………………………………………………………………………………………………………

  1. Blood  transfusion

……………………............……………………… ……………………...................................

             ………………..……………………………………………………………………………………                  …………………………………

(b) Design a diagram to illustrate the events that occurs during exhalation

 

 

                                       SECTION C 15 MARK

Answer only one question from this section

 

10. Tuberculosis (TB) is one of the dangerous communicable diseases. Suppose you have been assigned to move around the rural Tanzanian areas to educate people about TB, write down the:-

  1. Causes,
  2. Ways of transmission,
  3. Symptoms,
  4. Effects and
  5. Control measures of TB.

 

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LEARNINGHUBTZ.CO.TZFORM TWO BIOLOGY EXAM SERIES 118

THE PRESIDENT’S OFFICE MINISTRY OF EDUCATION, REGIONAL ADMINISTRATION AND LOCAL GOVERNMENT

COMPETENCY BASED SECONDARY EXAMINATION SERIES

BIOLOGY TERMINAL EXAMINATION

FORM TWO-2022

Student’s Name: ………………………………………………………..

Time: 2:30 Hours  Date: JULY 2022

 INSTRUCTIONS:

  • This paper consists of section A, B and C
  • Answer all questions in section A, B and C
  • All answer must be written in the spaces provided
  • All writings must be in blue or black ink EXCEPT for the diagrams which must be in pencil

SECTION A (15 MARKS)

1. For each of the items (i)-(x), choose correct answer from among the given alternatives and write its letter in the box provided.

(i) Which organisms belongs to kingdom Plantae?

  1. Fern and amoeba
  2. Moss and mucor
  3. Liverwort and yeast
  4. Fern and moss

(ii) Unexpected event which can cause injury and sometimes death is called

  1. Accident
  2. Emergency
  3. Outbreak.
  4. Disaster.

(iii) People with talking behavior while eating are considered to have

  1. Bad manner.
  2. Table manner.
  3. Talkative manner
  4. Chatty manner.

(iv) Medical waste is described as

  1. Biohazardous
  2. Reusable
  3. Biodegradable
  4. Recyclable

(v) When giving first aid to a snakebite victim, you should not

  1. Cut the wound
  2. Calm them down
  3. Remove jewelers from the bitten limb
  4. Lower the bitten area

(vi) The first step in the scientific method is

  1. Experimentation
  2. Asking questions
  3. Identifying the problem
  4. Formulating hypothesis

(vii) The young leaves of ferns are called

  1. Rhizoids
  2. Thallus
  3. Sori
  4. Fronds

(viii) The following disease are communicable except.

  1. Cholera
  2. Kwashiorkor
  3. Tuberculosis
  4. Malaria

(ix) Which are two main branches of biology?

  1. Mamamology and immunology
  2. Cytology and ethnology
  3. Botany and zoology
  4. Zoology and cytology

(x) In human being, the brain is an example

  1. Tissue
  2. An organ
  3. Organelles
  4. System

2. For each of items i - v, choose the correct answer among the given alternative in list B, and write its letter in the table below.

LIST A

LIST B

(i) A disease transmitted through sexual intercourse and treated by antibiotics

(ii) A viral disease transmitted through sexual intercourse

(iii) An disease characterized by fever and coughing up blood sputum

(iv) disease transmitted by contaminated water

(v) A disease caused by lack of proper hygiene and victim had a stool of rice water like coloration.

  1. Cholera
  2. Typhoid
  3. AIDs
  4. Arteries
  5. Syphilis
  6. Common cold
  7. Schist soma
  8. Tuberculosis
  9. Veins
  10. Malaria
  11. Vena cava

LIST A

i.

ii.

iii.

iv.

v.

LIST B






 SECTION B (70 MARKS)

Short answer questions

3. Morison accidentally fallen in the class and was found that he was not breathing. The students help him to recover from breathing.

  1. What is the name of the process done by students? -------------------------------------------------
  2. What were the reasons of giving the process above? Give four reasons
    1. ------------------------------------------------------------------------------------------
    2. -----------------------------------------------------------------------------------------
    3. ------------------------------------------------------------------------------------------
    4. ------------------------------------------------------------------------------------------
  3. What were the qualities of the student who gave the process?
    1. ----------------------------------------------------------------------------------------------------------
    2. ----------------------------------------------------------------------------------------------------------
    3. ----------------------------------------------------------------------------------------------------------
  1. (a) What do you understand by the following term
    1. Classification
    2. Taxonomy

(b) Write 4 differences between natural and artificial systems of classification.

i.


ii.


iii.


iv.


5. (a) Zalina is a form one student who wants to make artificial animal cell which perform

the functions of plant cell, what kind of modification she has to make?

(b) (i)Arrange the following term in a sequential order from simple to complexity of cell Differentiation. Tissue, organelle, organism, organ, cell and system.

(ii) b) Mention four differences between Tongue cells and Leaf cells.

No

Tongue cell

Leaf cell

1



2



3



4



(c) Draw the diagram of animal cell and on it;

  1. Label the part which controls all activity of the cell
  2. Label the part which protects the structures inside the cell

6. (a) Define the term” biology laboratory”

(b) List four features of a good biology laboratory

(c) Why most biology laboratory apparatus is made up glass? Give two points

7. (a)What is Nutrition?

(b)With one example outline phyla of kingdom fungi

(c)Outline any four (4) advantages of kingdom fungi

8. (a) Define the following;

  1. Immunity
  2. Disease
  3. Health
  1. Write down five factors for lowering body immunity.

9. (a) Differentiate the following;

  1. Nutrition and digestion
  2. Ingestion and egestion
  3. Absorption and assimilation
  4. Homodont and heterodont
  5. Parasitism and commensalism

10. Briefly explain five effects of poor waste disposal.

SECTION C (15 MARKS)

(Essay questions)

Answer the following question in this section.

  1. Biology is not only about botany and zoology. Discuss this statement.

LEARNINGHUBTZ.CO.TZFORM TWO BIOLOGY EXAM SERIES 109

Student’s Examination Number……………………………

 

PRESIDENT’S OFFICE

REGIONAL ADMINISTRATION AND LOCAL GOVERNMENT

FORM TWO MOCK EXAMINATION 

033      BIOLOGY

Time: 2:30 Hours           JULY  2022

Instructions

  1. This paper consists of sections A, B and C with total of eleven (11) questions.
  2. Answer all questions in sections A and B and one question from section C.
  3. Answer all questions in the spaces provided.
  4. Section A carries thirty (30) marks, section B fifty (50) marks and section C carries twenty (20) marks.
  5. All writing must be in blue or black ink except drawing must be in pencil.
  6. Cellular phones and any other unauthorized materials are not allowed in the examination room.
  7. Write your Examination Number at the top right corner of every page.

 

FOR EXAMINERS’ USE ONLY

QUESTION NUMBER

SCORE

EXAMINATERS’ INITIALS

1

 

 

2

 

 

3

 

 

4

 

 

5

 

 

6

 

 

7

 

 

8

 

 

9

 

 

10

 

 

11

 

 

TOTAL

 

 

CHECKER’S INITIALS

 

 

 

SECTION A (30 Marks)

Answer all questions in this section

  1. For each of the item (i-x), choose the most correct answer from among the given alternatives and write its letter in the box provided.
  1. The branch of science which deals with the study of living things is known as

A: Biology     C: Botany

B: Ecology    D: Zoology

  1. Which of the following structure controls the movement of living materials in and out of the cell?

A: Nucleus    C: Cell membrane 

B: Chloroplast    D: Vacuole

  1. A room specifically designed for carrying out scientific experiments is known as

A: Classroom    C: Library

B: Fume chamber    D: Laboratory

  1. The following organisms belong to the kingdomFungi

A: Amoeba, Spirogyra and Yeast

B: Mucor, Mushroom and Algae

C: Yeast, Mucor and Moss

D: Yeast, Mushroom and penicillium

  1. Which of the following is a fundamental unit of life

A: Tissue     C: Heart

B: Kidney     D: Cell

  1. Muscle fatigue in the body is caused by lack of

A: Carbon dioxide    C: Lactic acid

B: Pyruvic acid    D: Oxygen

  1. Green plants in a community are ecologically referred to as

A: Consumers    C: Decomposers

B: Producers    D: Ecosystem

  1. The end product of fats/lipids in digestion process is called

A: Amino acid    C: Glucose

B: Peptide      D: Fatty acid and glycerol

  1. The process by which light energy split water molecules to release hydrogen ion and oxygen molecule is called

A: Photosynthesis    C: Hydrolysis

B: Photolysis    D: Condensation

  1. Cholera disease is caused by

A: Female anopheles-mosquito  C: Vibrio cholera

B:  Protozoan called amoeba  D: Housefly

 

i

ii

iii

iv

v

vi

vii

viii

ix

x

 

 

 

 

 

 

 

 

 

 

 

 

  1. For each of the following items (i-x), write True if the statement is correct or Falseif the statement is incorrect in the space provided.
    1. All cells contain chloroplast…………………
    2. Sharing of towels can spread STI’S……………….
    3. Bile is a greenish yellow liquid produced by gall bladder………………
    4. Xylem vessels transport water from the roots to the leaves……………..
    5. Anaerobic respiration occurs in the absence of oxygen………………….
    6. A good mannered person will always greet others……………………….
    7. Fungi are multicellular organisms which contain chlorophyll……………
    8. Rickets is prevented by increasing the amount of vitamin D in a diet……………
    9. Poor waste disposal may lead to the eruption of epidemic diseases……………….
    10. Colon is a special site for absorption of digested food materials…………...

 

 

i

ii

iii

iv

v

vi

vii

viii

ix

x

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3. Match the phrase in List A with response in List B by writing the letter with a correct responses in the spaces provided

LIST A

LIST B

  1. Malnutrition disorder caused by deficiency of protein in children
  2. Failure to see in dim light due to deficiency of vitamin A in a diet
  3. Malnutrition of bones caused by deficiency of vitamin B in a diet
  4. Bleeding of gums and poor healing of the wounds due to deficiency of vitamin C
  5. A disease caused by a lack of vitamin B3

A: Bulimia nervosa

B: Rickets

C: Scurvy

D: Marasmus 

E: Beriberi

F: Night blindness

G: Pellagra

H: Kwashiorkor

 

 

LIST A

i

ii

iii

iv

v

LIST B

 

 

 

 

 

 

 

4. Complete each of the following statement by writing the correct answer in the space provided.

  1. A taxonomic rank of organisms which interbreed freely and give rise to viable offspring are known as………………………………………
  2. The type of classification which is based on few observable features is called …………………………………………………….
  3. The highest rank of classification is known as……………………………..
  4. The process of sorting living things into groups is known as…………………………………………….
  5. An involuntary ejection of substances from the stomach through the mouth is called………………………………….

 

 

 

 

SECTION B (50 Marks)

Answer all questions in this section

5(a) Mention three phylum of Kingdom Fungi and give one representative member in each phylum

Phylum 

Example of representative organism

  1.  

 

  1.  

 

  1.  

 

 

 

(b) State four (4) economic importance’s of Kingdom Fungi

  1. ………………………………………………………………………………
  2. ………………………………………………………………………………
  3. ……………………………………………………………………………...
  4. ……………………………………………………………………………..

(c)  State three (3) demerits of Kingdom Fungi

  1. ………………………………………………………………………………
  2. ………………………………………………………………………………
  3. ……………………………………………………………………………….
  1. (a) Construct four (4) possible food chains by using the following organisms.

 

Grasses, Lion, Bacteria, Zebra, Hyena and Giraffe

  1. ……………………………………………………………………………………..
  2. …………..………………………………………………………………………….
  3. ………………………………………………………………………………………
  4. ………………………………………………………………………………………

(b) Explain the role played by the following organisms in the food chains you have constructed   in 6 (a)

above.

  1. Bacteria …………………………………………………………………………………………
  2. Grass ……………………………………………………………………………………………
  1. (a) What is gaseous exchange?

………………………………………………………………………………………………………………………………………………………………………………………………

 

(b) Name the structures used for gaseous exchange in the following organisms

  1. Grasshopper
  2. Green plants
  3. Human being
  4. Fish
  5. Spider

           (c)  List three (3) factors affecting gaseous exchange rate.

i. …………………………..

ii……………………………

iii ………………………….

  1. (a) How is ileum adapted to its function? (four points)
    1. …………………………………..
    2. …………………………………..
    3. …………………………………..
    4. …………………………………..

 

(b) Explain how the following habits cause disorders in the digestive system?

  i. Eating a lot of sugary food………………………………………

  ii. Eating food with no or less fibres…………………………………

  iii Not drinking adequate amount of water…………………………

  iv Eating food with too much oil and spices………………………..

(c) Name four (4) types of teeth

  i. …………………………….

  ii…………………………….

 iii……………………………

 iv…………………………….

  1. (a) State the use of the following components of first aid kit.
  1. Cotton wool…………………………………………………………………………
  2. Soap…………………………………………………………………………………
  3. Pain killers……………………………………………………………………….….
  4. Whistle………………………………………………………………………………

 

 

(b) Give four (4) importance of providing first aid to a person who has been bitten by a snake.

 i. ……………………………………………………………………………………

 ii. …………………………………………………………………………………...

 iii……………………………………………………………………………………

 iv……………………………………………………………………………………

 (c) List four (4) common accidents at home and school

  i……………………………………………

  ii…………………………………………..

  iii………………………………………….

  iv………………………………………….

 

SECTION C (20 Marks)

Answer only one (1) question from this section

 

  1. Write an essay on photosynthesis using the following guidelines

. Meaning of photosynthesis

. Raw materials for photosynthesis

. End products of photosynthesis

. Importance of photosynthesis (2 points)

 

  1. Elaborate any four (4) traditional and three (3) modern methods used in food processing, preservation and storage.

 

………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………….........................................................

LEARNINGHUBTZ.CO.TZFORM TWO BIOLOGY EXAM SERIES 103

THE PRESIDENT’S OFFICE

MINISTRY OF EDUCATION, REGIONAL ADMINISTRATION AND LOCAL GOVERNMENT

COMPETENCY BASED SECONDARY EXAMINATION SERIES

BIOLOGY TERMINAL EXAMINATION

FORM TWO-2022

 

Time: 2: 30Hours

INSTRUCTIONS.

  1. This paper consists of section A, B and C with a total of 11 questions
  2. Answer all questions in section A and B and ONE question from section C.
  3. Section A carries 30 marks, section B 50 marks and section C 20  Marks
  4. All answers should be written in the spaces provided.
  5. All communication devices, calculators and any unauthorized material are not allowed in examination room.
  6. Write your number on every page of your answer booklet.

 SECTION A (30 Marks)

 Answer All questions in this section.

1. Choose the best alternative from the choices given and write it on the spaces provided.

  1.            The following are examples of water – borne diseases:
  1.   Malaria and bilharzia.
  2.   Yellow fever and typhoid
  3.    Diarrhoea and malaria.
  4.   Cholera and plague.
  5.   Cholera and typhoid

(ii) One of the distinctive features o f kingdom fungi is possession of:

  1. Plasma membrane
  2. Cytoplasma
  3. Chitin materials
  4. Cell membrane
  5. Cellulose materials.

(iii) A grasshopper ventilates its gaseous exchange surfaces by:

  1. Moving the diaphragm
  2. Beating of cilia
  3. Rhythmic body movement
  4. Opening of spiracles
  5. Moving its rib cage.

(iv) The taxonomic category of organisms belonging to the same class but not to the same family is?

  1. Species
  2. Genus
  3. Order
  4. Phylum
  5. Kingdom.

(v) The function of sunlight energy in the human skin is to stimulate the synthesis of?

  1. Vitamin A
  2. Vitamin C
  3. Vitamin D
  4. Vitamin K
  5. Vitamin B.

(vi) Night blindness in human body is avoided by eating? 

  1. Oranges
  2. Carrot
  3. Red meat
  4. Green vegetables
  5. Chicken

(vii) A blood vessel which conveys deoxygenated blood away from the heart is called?

  1. Capillaries
  2. Artery
  3. Veins
  4. Pulmonary vein
  5. Pulmonary artery.

(viii) Which of the following structure is a site of respiration?

  1. Chloroplast
  2. Ribosome
  3. Nuclear
  4. Nucleic acid
  5. Mitochondria.

(ix) The structures found in bacteria are:

  1. Plasmid, flagella and cilia
  2. Cytoplasm, cilia and plastids
  3. Cell wall, plasmid and flagella
  4. Cell membrane, flagella and hairs
  5. Plasmid, capsule and cilia.

(x) The by – products in photosynthesis process are:

  1. Carbohydrate and water
  2. Carbon dioxide and oxygen
  3. Oxygen and water
  4. Carbohydrate and carbon dioxide 
  5. Oxygen and air.

2. Matching items questions.

LIST A

LIST B

  1. Supplies blood to the heart
  2. Loss of mineral in which they move deeper beyond plant roots
  3. An organism that cause typhoid
  4. Classification based on few external features.
  5. Has same origin but different function.

 

  1. Epidemic disease
  2. Sporadic disease
  3. Niche
  4. Trophic level
  5. Cell specialization
  6. Cell differentiation
  7. Coronary artery
  8. Septum
  9. Leaching
  10. Eutrophication
  11. Salmonella typhi
  12. Typhoid coli
  13. Cytoplasmic streaming
  14. Pseudopodia
  15. Taxonomy
  16. Artificial classification
  17. Natural classification
  18. Homologous structure.
  19. Analogous structure.

 

4. Complete each of the following statements by writing the correct answer in the spaces provided.

(i)The sticky fluid in the nose that helps to trap dust is known as . . . . . . . . . . . . . . 

(ii)The muscles that are found between the ribs are called . . . . . . . . . . . . . . 

(iii)The process of taking in air into the lungs is called . . . . . . . . . . . . . . 

(iv)The breakdown of food in the absence of oxygen to release energy is known

as . . . . . . . . . . . . . . 

(v)A structure that closes the opening of the trachea to prevent food from entering it during swallowing is known as . . . . . . . . . . . . . . 

 

5. Study the digestive system of normal below and answer questions that follow:

 

 

  1. Name parts labeled A, B, C, D, E and F.
  2. Name two enzymes secreted by part labeled F.
  3. State role of one of enzymes secreted at part labeled F.

 

6. (a) (i) What is a tissue

          (ii) Name three animal and plant tissues.

    (b) State the structural differences between cell wall and a cell membrane.

    (c) Describe the function of blood plasma.

7. (a) Explain the function of the following parts of compound microscope.

  1. Stage
  2. Eyepiece

      (b) Name four (4) human diseases caused by viruses.

      (c) Mention four ways of helping a person who has been bitten by a snake.

8. (a) What is meant by the following terms.

  1.              Digestion
  2. Malnutrition
  3. Balanced diet
  4. Nutritional disorder.

   (c) Explain why;

  1.              One can swallow food while upside down?
  2.                      Digestion of starch does not continue in the stomach?
  3.                    Food in duodenum is alkaline
  4.                    One is advised to eat roughage although they do not have any nutritional                 value.

9. (a) Draw a large labeled diagram of villus found in the digestive system.

    (b) Name digestive juice produced by the liver and state the content of that juice.

    (c) Differentiate between the following terms.

  1. Breathing and respiration
  2. Inhalation and exhalation

SECTION C:

10. Write an essay on malaria using guidelines below.

  1. Causes
  2. Transmission
  3. Signs and symptoms
  4. Ways of prevention
  5. Treatment of the diseases.

11. Discus the advantage and disadvantage of artificial and natural classification.

 

LEARNINGHUBTZ.CO.TZFORM TWO BIOLOGY EXAM SERIES 96

THE PRESIDENT’S OFFICE

MINISTRY OF EDUCATION, REGIONAL ADMINISTRATION AND LOCAL GOVERNMENT

COMPETENCE BASED SECONDARY EXAMINATION SERIES

BIOLOGY MID TERM EXAMINATION

FORM TWO-MARCH/APRIL-2022

Time: 2:30Hours

Instructions.

  1.    This paper consists of section A, B and C with a total of 11 questions
  2.    Answer all questions in section A and B and ONE question from section C.
  3.    Section A carries 30 marks, section B 50 marks and section C 20  Marks
  4.    All answers should be written in the spaces provided.
  5.    All communication devices, calculators and any unauthorized material are not allowed in examination room.
  6.    Write your number on every page of your answer booklet.

 

  1.       Question (i – x) is multiple choice items. Select the best answer in each case and write its letter in the chart provided
  1.      Biology is the branch of science which deals with the study of
  1.      Plants and animals
  2.      Living things and non living things
  3.       Living things
  4.      Zoology and botany
  1.    The reason why we study biology one is that
  1.      We should be competent in the subject
  2.      We want to improve the standard of living
  3.       We want to teach students
  4.      We want to be spokes mans of biologists
  1.  The ability of organisms to detect changes in their environment is termed as 
  1.      Irritability
  2.      Movement
  3.       Reproduction
  4.      Nutrition
  1.  The reason of having laboratory rules in laboratory is 
  1.      To make it smart and attractive
  2.      To make students uncomfortable
  3.       To show how teachers we are strict
  4.      To minimize danger/hazards
  1.    In this way you can preserve alive and terrestrial plants
  1.      In the dam
  2.      Using cage
  3.       Botanical garden
  4.      Museum

 

  1.  The organelle whose function is to transport protein and fats is
  1.      Ribosome
  2.      Golgi apparatus
  3.       Endoplasmic reticulum
  4.      Centrosome
  1. The group of organs which join together and work as a functional unit is ……
  1.      Tissue
  2.      Organ
  3.       System
  4.      Organism
  1.   A person bite by a snake is  advised not take alcohol why?
  1.      Because he can be bite by another  snake again
  2.      Since the ant-venom wont work
  3.       He want assist professionals to  identify snake type
  4.      Since will increase heart rate and  spread of venom quick
  1.     A plant cell type which has no  chloroplast is ………….
  1.            Palisade cell
  2.            Collenchyma’s cell
  3.             Root hair cell
  4.            Parenchyma cell
  1.                       Body tube to the microscope has the following function
  1.            Hold eye pieces and revolving nose piece
  2.            Concentrates light reflected by mirror
  3. Holding objectives in place
  4.   Reflect light to the object
    1.       The following statement is either true or false so write T to the true statement      and F to the false statements. 
  1.      Biologist is a person who study more about animals ______
  2.    We get knowledge to preserve environment so biology is not important _____
  3.  When a person has being burnt apply iodine tincture _________
  4.  We put chemicals and apparati for emergency treatment in first aid kit ____
  5.          Bacteria is prokaryotic ______
  6.  The smallest unit of life is a cell _______
  7. Mitochondria is a site for cellular respiration __________
  8.   When cleaning lenses of microscope ethanol is recommended
  9.  Heart, root, shoot, liver are organs 
  10.    Red blood cells has no nucleus due to bad creation of God

 

  1.    Match the sentence in list A with those in list B

LIST A.

 

LIST A

LIST B

  1.      Comes from two Greek words
  2.     Is a cavity filled with fluid known as cell sap
  3.    Provide firm and steady support to  the cell
  4.     It control activities of the cell
  5.         Sudden violence disturbance of mind and emotion

 

  1. Botany
  2. Zoology
  3. Cell wall
  4. Nucleus
  5. Cell membrane
  6. Fainting
  7. Shock.
  8. Vacuole
  9. Biology

 

 

4.  Complete each of the following statements by writing the correct answer in the spaces provided.

  1. Finger like projections that helps in digestion of food................................
  2. Movement of food along alimentary canal..............................................
  3.                    Feeding of dead decaying matter.....................................................
  4.                    Digestive juice that contains three enzymes.................................
  5. Loss of water in plants in form of droplets........................................................

SECTION B (50 Marks)

Answer all questions in this section.

5. a) Draw and label the structure of animal cell .

b) Mention four importance of first aid to an individual.

 6. a) Explain how will you help a victim of drowning

 b) State and explain three principles of   waste disposal.

7. (a) Explain briefly how cell membrane is made 

(b) Give two function of plasma membrane 

(i) __________________________________________

(ii) __________________________________________

(b)  Explain four principles of cell theory

  8. A) Mention five (5) laboratory rules you know 

 b) Mention five causes of accidents in the laboratory.

 9. i) Draw the following apparatus found in the laboratory. 

(a) Funnel      

 (b) Beaker

(c) Measuring cylinder   

 (d) Test tube 

II)  List four importance of studying biology.

 

 

SECTION C (20 Marks) Answer one (1) question from this section

 

10. WRITE an essay on balanced diet using the following subheadings;

  •    Meaning of a balanced diet
  •    Components of balanced
  •    Importance of  each component
  •    Deficiency diseases which may results when a person does not eat a balanced diet
  • Two factors which contribute to lack of a balanced diet  among  children in Tanzania

 

11. Write the essay on cholera under the following subheading 

  • cause
  • transmission
  • symptoms 
  • Prevention. 

 

LEARNINGHUBTZ.CO.TZFORM TWO BIOLOGY EXAM SERIES 86

THE PRESIDENT’S OFFICE

MINISTRY OF EDUCATION, REGIONAL ADMINISTRATION AND LOCAL GOVERNMENT

COMPETENCE BASED  SECONDARY EXAMINATION SERIES

BIOLOGY ANNUAL EXAMINATIONS

FORM TWO-2021

       033                                                

TIME: 2:30 HOURS                                                       Nov, 2021

image

Instructions

1.This paper consists of sections A, B and C.

2.Answer all questions in sections A and B and only ONE (1) question from section C.

3.All writings must be in blue or black ink except drawings which must be in pencil.

4.All communication devices and Calculators are not allowed in the Examination Room. 

5.Write Your Examination Number on the top right of every page.

FOR EXAMINER’S USE ONLY

QUESTION

NUMBER

SCORE

EXAMINER’S INITIALS

1

2

3

4

5

6

7

8

9

10

11

TOTAL

CHECKER’S INITIALS

SECTION A: (30 Marks)

Answer all questions in this section

1.For each of the items (i)-(x), choose the most correct answer from among the given alternatives and write its letter in the box provided:

(i)Which of the following is not a sexually transmit disease?

A.Trochomoniasis

B.Candidiasis 

C. Vaginosis

D.Cholera.

(ii) The function of sunlight energy in the human skin is to stimulate the synthesis of:

A.Vitamin A

B.Vitamin C

C.Vitamin D 

D. Vitamin K.

(iii)The basic importance of all laboratory rules is to:

A.Avoid dirtiness

B.Prevent student from entering

C.Reduce accidents

D.Reduce the use of chemical in the lab.

(iv)Plants are said to be vascular if: A. They contain phloem only

B.They contain xylem only

C.They contain cambium

D.They contain phloem and xylem.

(v)A group of interdependent organisms living in an environment is called:

A.Community

B.Ecology

C.Ecosystem 

D. Population.

(vi)Which of the following characteristics could be used to distinguish birds from mammals?

A.Control of body temperature

B.Use of lungs

C.Number of limbs

D.What covers their skins.

(vii)A liquid prepared by either weak or dead microorganisms is called:

A.Serum

B.Immunity

C.Immunization

D.Vaccine.

(viii)The feeding relationship represented by the sequence 

Green plantsGrasshopperFrog is called:

A.Food web

B.Food chain

C.Predation 

D. Community.

(ix)The blood vessel which carries deoxygenated blood from the heart to the lungs is:

A.Pulmonary vein

B.Pulmonary artery

C.Aorta 

D. Venacava.

(x)What does the concept of good health imply? 

             A.   A state of physical, sexual and mental fitness

B.Being physically, mentally and socially fit

C.A state of family well being

D.Reproductive health and family care.

2.The following statements are either correct or incorrect. Write TRUE if the statement is correct and FALSE if the statement is incorrect.

(i)A person with blood group AB is called a universal donor. ______________

(ii)Before the blood returns to the heart, it has to be oxygenated in the liver. ____

(iii)All green plants are decomposers. ________________

(iv)Maintaining personal hygiene reduces the risks of infection. ______________

(v)Malaria is caused by plasmodium. _____________________________

(vi)Proteins in the diet are needed for growth and repair.. __________________

(vii)Vitamin K helps in blood-clotting. ______________________

(viii)The organ in the human body which helps the blood to receive oxygen is the heart. ____________________________

(ix)Grouping of organisms basing on their differences and similarities is called taxonomy. ___________________

(x)Age is one of the important factor to consider before blood transfusion.

_______________

3.Match the items from List A with the responses from List B by writing the letter of the correct response besides the item number.

LIST A

LIST B

(i)The upper chambers of the heart

(ii)Occurs when the ventricles relax to allow blood to flow in

(iii)Occurs when the ventricles contract to allow the blood flow out of the heart

(iv)Prevents backward flow of blood to the left auricle (v) Initiates the heart beat

A.Pulse maker

B.Ventricles

C.Ventricles

D.Auricles

E.Bicuspid valve

F.Pulmonary artery

G.Diastolic beat

H.Systolic beat

Answers:

LIST A

(i)

(ii)

(iii)

(iv)

(v)

LIST B

4.Complete each of the following statements by writing the correct answer in the space provided:

(i)__________________ is used for cutting hanging skin and dressing materials.

(ii)_______________ are important for cleaning cuts wounds and preventing infections.

(iii)_______________ is helpful for removing thorns and insects stings left behind in the body.

(iv)_______________ is a painful and swollen part of the skin with no cut.

(v)A sudden involuntary contraction of muscles that is painful and makes them temporarily unable to work properly is called _____________________________

SECTION B: (50 Marks)

Answer all questions in this section

5.(a) What do you understand by the following terms:

(i)Binomial nomenclature

_______________________________________________________________

_______________________________________________________________

(ii)Taxonomy

_______________________________________________________________

_______________________________________________________________

(iii)Species

_______________________________________________________________

_______________________________________________________________

      (b) State the taxonomic hierarchy of classification in an orderly manner:

(i)______________________________________________________________

(ii)______________________________________________________________

(iii)______________________________________________________________

(iv)_______________________________________________________________

(v)_______________________________________________________________

(vi)_______________________________________________________________

(vii)_______________________________________________________________

       (c)  Lion and Leopard cannot interbreed to produce a viable offspring. (Give one reason)

            _____________________________________________________________________              _____________________________________________________________________

6.Study the structure of the villus below and answer the questions that follow:

image 

(a)In which part of the alimentary canal is the above structure found?

_____________________________________________________________________

_____________________________________________________________________ _____________________________________________________________________

_____________________________________________________________________

(b)Name parts labelled X, Y and Z

X___________________________________________________________________

Y___________________________________________________________________ Z ___________________________________________________________________

(c) State three adaptations of the above structure for the absorption of food in the alimentary canal.

(i)_______________________________________________________________

_______________________________________________________________

(ii)_______________________________________________________________

_______________________________________________________________

(iii)_______________________________________________________________ _______________________________________________________________

7.Study the diagram of the following organisms carefully and answer the questions that follow:

image

(a) Identify the organisms above by their common Names:

Ris: _________________________________________________________

Sis: _________________________________________________________ 

(b) Classify the above organisms up to class level.

(c)State the locomotory structures of the organisms above.

R_____________________________________________________________

S_____________________________________________________________

8.(a) What do you understand by the following terms (i) Diffusion?

_______________________________________________________________

_______________________________________________________________

_______________________________________________________________

                (ii)      Osmosis

_______________________________________________________________

_______________________________________________________________

_______________________________________________________________

     (b) Differentiate between diffusion and osmosis

Diffusion

Osmosis

(i)

(ii)

(iii)

(iv)

9.(a)   Define natural environment

_____________________________________________________________________ _____________________________________________________________________

_____________________________________________________________________

(b)    Give at least four (4) importance of natural environment.

(i)_______________________________________________________________

                         _______________________________________________________________

(ii)_______________________________________________________________

                         _______________________________________________________________

(iii)_______________________________________________________________

_______________________________________________________________

(iv)_______________________________________________________________

_______________________________________________________________

SECTION C: (20 Marks) Answer one (1) question from this section

10.(a) What do you understand by the term risky behaviour?

(b)Give examples of risky behaviours and practices. (4 points)

(c)Explain any four (4) skills which can help to avoid risky behaviours and practices.

11.Write an essay on photosynthesis under the following guidelines:

•Meaning

•Site of the process

•Raw materials

•Conditions

•End products

•Importance of the process

___________________________________________________________________________

___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________

___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________

___________________________________________________________________________

___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________

___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________

___________________________________________________________________________

___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________

___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________

___________________________________________________________________________

___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________

___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________

___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________

___________________________________________________________________________

___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________

___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________

___________________________________________________________________________

___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________

___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________

___________________________________________________________________________

___________________________________________________________________________

___________________________________________________________________________

___________________________________________________________________________

___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________

___________________________________________________________________________

___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________

___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________

___________________________________________________________________________

___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________

___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________

___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________

___________________________________________________________________________

___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________

___________________________________________________________________________ ___________________________________________________________________________ ___________________________________________________________________________

___________________________________________________________________________

___________________________________________________________________________ ___________________________________________________________________________

___________________________________________________________________________


LEARNINGHUBTZ.CO.TZFORM TWO BIOLOGY EXAM SERIES 72

THE PRESIDENT’S OFFICE

MINISTRY OF EDUCATION, REGIONAL ADMINISTRATION AND LOCAL GOVERNMENT

COMPETENCE BASED SECONDARY EXAMINATION SERIES

BIOLOGY MID TERM EXAMINATION

FORM TWO-AUG/SEPT 2021

Time: 2:30Hours

Instructions.

  1.    This paper consists of section A, B and C with a total of 11 questions
  2.    Answer all questions in section A and B and ONE question from section C.
  3.    Section A carries 30 marks, section B 50 marks and section C 20  Marks
  4.    All answers should be written in the spaces provided.
  5.    All communication devices, calculators and any unauthorized material are not allowed in examination room.
  6.    Write your number on every page of your answer booklet.

 SECTION A (30 Marks)

 Answer All questions in this section.

  1.                For each of the items (i)-(x), choose the correct answer from the alternatives given.

(i)  In the human digestive system the stomach is known as:

  1.  a tissue
  2.  a cell
  3.  an organ
  4.  an organism

(ii)An organism with a rigid protective wall made up of chitin material is a representative of which Kingdom?

A.   Fungi         

 B.  Monera

 C.  Plantae 

 D.   Protoctista


(iii)The disease and disorder of the human circulatory system includes:

A.  Arteriosclerosis and heart burn

B.  Blood pressure and sickle cell anemia 

C.   Blood pressure and oedema 

D.   Leukemia and heart burn.

(iv)The product of anaerobic respiration process in animals is:

A.  uric acid     

B.  lactic acid

C.   sulfuric acid 

D.   hydrochloric acid

(v)  The ability of the human body to resist infections caused by micro organisms is known as:

  1.  immunity 
  2.   inoculation
  3.   treatment 
  4.   vaccination

(vi)  Insufficient food rich in protein to children especially infants result into nutritional deficiency disease called.

  1.  Marasmus
  2.  Obesity
  3.  Kwashiorkor 
  4.   Ricketts


(vii)  The structure of a leaf that allows oxygen and carbon dioxide to diffuse into and out of the leaf during gaseous exchange is known as:

  1.  cuticle
  2.  epidermis
  3.  mesophyll
  4.  stomata


(viii)     The following waste can be recycled except:

  1.  aluminium cans  
  2.   contaminated syringes 
  3.   glass jars and bottles   
  4.   papers and cardboards 
  5.   plastic bags

(ix)  The following are the products of respiration except:

  1.   alcohol, carbon dioxide, and energy
  2.   alcohol, energy, and lactic acid
  3.  carbon dioxide, energy, and lactic acid
  4.   carbon dioxide, energy, and water 
  5.    glucose, oxygen and water


(x)Three phyla of kingdom fungi are:

  1.  Ascomycota, Basidiomycota and Eumycota
  2.   Ascomycota, Basidiomycota and Zygomycota
  3.  Ascomycota, Bryophyta and Eumycota
  4.   Ascomycota, Bryophyta and Euglenophyta
  5.    Ascomycota, Euglenophyta and Zygomycota


2.For each of the items (i) - (x), write True if a statement is correct or False if a statement is not correct in the space provided.

(i) Botany is the study of animals  

(ii)Gaseous exchange in mammals takes place in the nose and mouth

(iii)One enzyme can act on several food substances ...............

(iv)During inhalation the ribs move upwards and outwards............... 

(v) Anemia is a condition in which a patient has few erythrocytes . 

(vi) Landfill is a way of disposing domestic wastes ...............

(vii)Amylase is an enzyme which acts on protein ...............

(viii)Consumers in the ecosystem produce their own food...............

(ix)Syphilis is a communicable disease ...............

(x)All bacteria are harmful to man ...............

3. Match each item in List A with a correct response in List B by writing its letter bellow the number of the corresponding item in the table provided.

LIST A

LIST B

(i)A vascular tissue used for transportation of water and mineral salts towards the leaf.

(ii)A small pore which allows gaseous exchange into and out of the leaf.

(iii)A water proof material which protects the leaf from injury and excessive water loss.

(iv)A bean shaped structure for effective control of water loss and gaseous exchange.

(v)A broad part of a leaf which increases large surface area for absorption of light and carbonidioxide.

A. Stomata Sponge mesophyll

B. Epidermis Cuticle

C. Lamina

D. Petiole

E. Vein

F. Midrib

G. Margin

H. Cross Mesophyll

I. Apex

J. Guard cell

K. Phloem

L. Xylem

M. Palisade 

N. Mesophyll

4. Complete each of the following statements by writing the correct answer in the spaces provided.

  1. The largest rank in classification is called.................................
  2. Name the agent that transmits bilharzia....................................
  3. The blood vessel that transports manufactured food from intestines into the liver
  4. Smallest structure where gaseous exchange takes place....
  5. The product of anaerobic respiration in animals.............

SECTION B (50 Marks)

Answer all questions in this section.

5.(a) What is the difference between natural and artificial classifications?

(b)Explain why the artificial system of classification is not good.

 Mention two disadvantages of bacteria.

6.(a) What is natural environment?

(b)Explain the importance of the natural environment.

(c)Explain two significances of food chains and food webs in real life situation.

7.(a) Explain the uses of the following First Aid kit components:

(i)Scissors

(ii)Gauze

(iii)Adhesive plaster

(iv)Iodine tincture

(b)      Outline the procedure of giving First Aid to a victim of nose bleeding. 

(c) Explain the importance of giving First Aid.


5. The photograph below represents a plant in a certain Division.

 

(a) (i) Name the Division to which the plant belongs. 

(ii) With reference to the photograph, state three observable features of the Division named in a (i) above.

(b) Name the parts labelled N and P.

(c) Explain how the part labelled Q is adapted to its functions.

9. (a) State the effect of movement of the diaphragm muscles during inhalation in mammals


(b) State two structural adaptations of leaves that maximise efficiency in gaseous exchange.

SECTION C

10.        Write an essay on malaria using the following guidelines:

  • Cause
  • Transmission
  • Symptoms 
  • Effects
  • Preventive measures

11. Explain six factors which affect the rate of transpiration in plants.

LEARNINGHUBTZ.CO.TZFORM TWO BIOLOGY EXAM SERIES 64

THE PRESIDENT’S OFFICE

MINISTRY OF EDUCATION, REGIONAL ADMINISTRATION AND LOCAL GOVERNMENT

COMPETENCY BASEDSECONDARY EXAMINATION SERIES

BIOLOGYTERMINALEXAMINATION

FORM TWO-2021

Time: 2:30Hours

Instructions.

  1.            This paper consists of section A, B and C with a total of 11 questions
  2.            Answer all questions in section A and B and ONE question from section C.
  3.            Section A carries 30 marks, section B 50 marks and section C 20  Marks
  4.            All answers should be written in the spaces provided.
  5.            All communication devices, calculators and any unauthorized material are not allowed in examination room.
  6.            Write your number on every page of your answer booklet.

 SECTION A (30 Marks)

 Answer All questions in this section.

  1. The liquid induced into the body of an organism so as to increase antibody production is known as
  1. tissue fluid.
  2. lymph.
  3. vaccine. 
  4. plasma.
  1. People with talking behaviour while eating are considered to have 
  1. bad manner. 
  2. table manner.
  3. talkative manner.
  4. chatty manner.
  1.                     Arteries have thick muscular walls because they transport blood 
  1. at low pressure. 
  2. at high pressure.
  3. towards the heart.
  4. away from the heart.
  1.                      What will happen when a red blood cell is placed in a more concentrated solution?
  1.  Crenation
  2.  Turgidity
  3.  Haemolysis
  4.  Plasmolysis
  1. A room specifically designed for carrying out scientific experiments is known as
  1.  Classroom
  2.  Fume chamber
  3.  Library
  4.  Laboratory
  1.                      The lowest rank of classification is called
  1.  Class
  2.  Kingdom
  3.  Species
  4.  Genus.
  1.                   The blood vessel which carries blood from the lungs to the heart is called:
  1. pulmonary artery
  2. vena cava
  3. pulmonary vein 
  4.  renal vein
  1.                Which one of the following are examples of animal tissues?
  1. Muscle, blood and bone
  2. Brain, bone and liver
  3. Skin, heart and brain
  4. Muscle, liver and skin
  1.                      What does the concept of good health imply?
  1. A state of physical, sexual and mental fitness
  2. Being physically, mentally and socially fi
  3. A state of family well being
  4. Reproductive health and family care
  1. Which of the following cell structures differentiates an animal cell from a plant cell?
  1. cytoplasm
  2. cell wall
  3. pancreatic juice
  4. nucleus


2. For each of the items (i) - (x), write True if a statement is correct or False if a statement is not correct in the spaces provided.

  1. All cells contain chloroplasts . . . . . . . . . . . . . .
  2. Cholera is transmitted through contaminated food . . . . . . . . . . . . . . 
  3.                     Photosynthesis is important because it releases carbon dioxide in the atmosphere……………….
  4.                      Anaerobic respiration is one of the causes of muscle fatigue………………
  5. Ventricles have thicker walls than the auricles .. 
  6.                      Colon is a special site for absorption of digested food materials ... ...
  7.                   Unicellular organisms are made up of one cell only ...............
  8.                Gaseous exchange in mammals takes place in the nose and mouth
  9.                      One enzyme can act on several food substances ...............
  10. Anemia is a condition in which a patient has few erythrocytes . 

2. Match each item in List A with a correct response in List B by writing its letter bellow the number of the corresponding item in the table provided.

LIST A

LIST B

(i) The highest rank in classification

(ii) A group of organisms that can interbreed to produce fertile offspring.

(iii) A sub-group of kingdom Plantae in which ferns belongs

(iv) A group of genera with similar characteristics.

(v)  A sub-group of highest rank of classification.

A. Kingdom

B. Phylum

C.  Class

D. Species

F. Family

G. Genus 

H. Order

I. Kingdom monera

K. Kingdom Pteridophyta

L. Phylum Bryophyta

M. Kingdom Plantae

(b) Answer the given questions by writing the correct answer in the blank spaces provided.

  1. In which stage is the hypothesis tested during scientific investigation? . . . . . . . . . . . . . . . . .
  2. The linear flow of energy and nutrient in the ecosystem is known as………………..
  3.                     Turning waste into useful products is termed as . 
  4.                      A place where solid waste is buried in the ground is called .......... . 
  5. A taxonomic rank of organisms which interbreed freely and give rise to viable offspring are known as ......................... 

SECTION B (50 Marks)

Answer all questions in this section.

4. In investigating a certain physiological process, students set up the apparatus as shown below and made the observation after 30 minutes as illustrated.

(a) Name the physiological process being investigated.

(b) Account for the observation made at the end of the experiment.

(c) State the likely identity of G.

5. (a)  Distinguish between chemical and mechanical digestion.

(b) State the role of each of the following in the mammalian respiratory system:

(i) mucus)

(ii) cartilage rings 

(iii) epiglottis 

6. In an investigation, students set up the apparatus below in the laboratory and made observations after 72 hours.

 (a) Explain how inclusion of the following components would affect the mouse in the experiment:

(i) Light

(ii) sodium hydroxide solution

b. Explain each of the following physiological observation :

(A) Sportsmen release little, concentrated urine at the end Of a strenuous exercise

(B) A rabbit has a higher oxygen demand than a camel

7.   (a) List five accidents which are common at school and home.

(i)     ………… ……………… ………………… …………………

(ii)  ………… ……………… ………………… …………………
 

LEARNINGHUBTZ.CO.TZFORM TWO BIOLOGY EXAM SERIES 58

Candidate’s Examination Number………………………

THE PRESIDENT’S OFFICE MINISTRY OF EDUCATION, REGIONAL ADMINISTRATION AND LOCAL GOVERNMENT

SECONDARY EXAMINATION SERIES

BIOLOGY MID TERM EXAMINATION-MARCH

FORM TWO-2021

Time: 2:30Hours

Instructions.

  1. This paper consists of section A, B and C with a total of 11 questions
  2. Answer all questions in section A and B and ONE question from section C.
  3. Section A carries 30 marks, section B 50 marks and section C 20 Marks
  4. All answers should be written in the spaces provided.
  5. All communication devices, calculators and any unauthorized material are not allowed in examination room.
  6. Write your number on every page of your answer booklet.

SECTION A (30 Marks)

Answer All questions in this section.

  1. For each of the items (i)-(x), choose the correct answer from the alternatives given.
  1. A certain food substance turned blue black when a drop of iodine was added into it. A food substance was
  1. Starch
  2. Lipids 
  3. Proteins
  4. Reducing Sugar
  1. A process which ensures continuity of life on earth is known as
  1. Reproduction
  2. Respiration
  3. growth 
  4. excretion
  1. Photosynthesis takes place in the
  1. Chloroplast
  2. mitochondria
  3. cytoplasm
  4. lungs
  1. Which of the following is expected to happen if blood to the brain is reduced
  1. Fainting
  2. Nausea 
  3. Shivering
  4. Shock
  1. Food is stored in the liver in the form of
  1. Sucrose
  2. Glycogen 
  3. Galactose
  4. Starch
  1. The following organisms are members of kingdom fungi
  1. Yeast, Mucor and Amoeba 
  2.  Yeast, Mucor and Moss
  3. Amoeba, Yeast and Spirogyra
  4. Mushroom, Yeast and Penicillium
  1. A principle of waste management in which waste is turned into other useful categories is known as:
  1. Reuse 
  2. Recycling
  3. Burning 
  4. Reduction
  1. A communicable disease which attacks the membrane of the brain and spinal cord leading to stiffness of the necks
  1. Meningitis 
  2. Cholera
  3. Plague 
  4. Malaria
  1. A term used to describe a disease which occurs regularly in a particular place or in a given area constantly,
  1. Pandemic
  2. Endemic
  3. epidemic
  4. Sporadic
  1. In biology, antibodies are;
  1. Substance causing disease 
  2. Any foreign bodies
  3. Specific to specific antigens
  4. Very poisonous to the body

ANSWERS

i

ii

iii

iv

v

vi

vii

viii

ix

x











  1. The following statements are either true or false. Write T for true statements and F for false statements
  1. All living cells contains chloroplasts
  2. Microscope is used to magnify very large objects
  3. Sharing towels cannot spread STI’s
  4. Malaria is caused by male anopheles mosquito
  5. The fluid inside the nucleus is called cell sap
  6. Virus is a prokaryotic organism
  7. A scientific name for Human being is HOMO SAPIENS.
  8. Root hairs decreases the surface area of roots for water absorption
  9. Wings of birds and Arms of man are Analogous structures
  10. A Human being cannot make vitamin D for itself

i

ii

iii

iv

v

vi

vii

viii

ix

x











2. Match the items in list A with those in list B and write its letter in the box provided below

LIST A

LIST B

  1. Cholera
  2. Plague
  3. Bilharzia
  4. Typhoid
  5. Genital herpes
  1. Plasmodium
  2. Pesturela pestis or Yesnia Pestis
  3. Salmonela typhi
  4. Salmonela Typhi
  5. Vibrio Cholera
  6. Vibrio cholera
  7. Herpes simplex
  8. Schistosoma haematobium
  9. Scistosomiasis
  10. Trichomonas vaginalis

ANSWERS

List A

i

ii

iii

iv

v

List B






  1. Fill the blanks

A human digestive system consists of ________________________ which runs from mouth to anus, and two organs which are liver and ______________________. The liver produces____________________________ which is stored in the __________________ and released to the duodenum through ________________________ for emulsification of fat so as to provide a large surface area for fat digesting enzymes to work properly.

SECTION B (50 Marks)

Answer all questions in this section

  1. (a) Define each of the following terms
  1. Digestion ____________________________________________________________________________________________________________________________________
  2. Emulsification ____________________________________________________________________________________________________________________________________
  1. Name the parts where digestion of the following food substances begins
  1. Starch ________________________________________________________
  2. Protein _______________________________________________________
  3. Lipids (fat and oil) ______________________________________________
  1. Mention at least four components of saliva (i)___________________________________________________________________ (ii)__________________________________________________________________ (iii)______________________________________________________________­­­­­­­____ (iv)______________________________________________________________­­____
  1. (a) Define each of the following terms
  1. Enzymes ____________________________________________________________________________________________________________________________________
  2. Assimilation ____________________________________________________________________________________________________________________________________
  3. Absorption ____________________________________________________________________________________________________________________________________
  4. Egestion ____________________________________________________________________________________________________________________________________
  5. Alimentary canal ____________________________________________________________________________________________________________________________________
  6. Peristalsis ____________________________________________________________________________________________________________________________________
  7. Nutrition ____________________________________________________________________________________________________________________________________
  1. Differentiate between the digestive system of Ruminant and the digestive system of Human being (four differences)

Ruminant

Human being









  1. Why is pepsin secreted in inactive form? ____________________________________________________________________________________________________________________________________
  1. Observe the following diagram carefully and then answer the questions that follows

G:Capture.JPG

  1. Identify the above diagram________________________________
  2. Name the parts labeled A, B, C, D, E, F, G, H, I and J
  1. A ______________________________
  2. B ______________________________
  3. C ______________________________
  4. D ______________________________
  5. E ______________________________
  6. F ______________________________
  7. G ______________________________
  8. H ______________________________
  9. I _______________________________
  10. J _______________________________
  1. Name the part(s) where absorption of most food substances takes place _____________________________________________________________________
  2. How does structure labeled J adopted to its function (4 adaptations) (i)______________________________________________________________________________________________________________________ (ii)_____________________________________________________________________________________________________________________ (iii)_____________________________________________________________________________________________________________________ (iv)_____________________________________________________________________________________________________________________
  1. (a) Define the terms
  1. Cell __________________________________________________________________
  2. Cytology ________________________________________________________________
  1. Mention the main parts of cell ____________________________________________________________________________________________________________________________________________________________________________________________________________
  2. Draw the plant cell to show the named part in 8(b)
  1. Name the following
  1. A mobile cell __________________________________________________
  2. A cell without nucleus ___________________________________________
  3. A cell that changes its shape _______________________________________
  4. A cell that transports water ________________________________________
  5. A cell that absorbs water _________________________________________
  6. A cell that contains a lot of chloroplasts______________________________
  1. Draw a well labeled diagram of each of the following
  1. A Bacteria
  1. A Mushroom
  1. Amoeba

SECTION C

Answer one (1) question from this section

  1. With example(s), write an essay on heterotrophism
  2. Write an essay on the disorders of the digestive system

LEARNINGHUBTZ.CO.TZFORM TWO BIOLOGY EXAM SERIES 46

Student’s Examination No............................................

THE PRESIDENT’S OFFICE MINISTRY OF EDUCATION, REGIONAL ADMINISTRATION AND LOCAL GOVERNMENT

SECONDARY EXAMINATION SERIES

BIOLOGY MID TERM EXAMINATION-MARCH

FORM TWO-2021

Time: 2:30Hours

Instructions.

  1. This paper consists of section A, B and C with a total of 11 questions
  2. Answer all questions in section A and B and ONE question from section C.
  3. Section A carries 30 marks, section B 50 marks and section C 20 Marks
  4. All answers should be written in the spaces provided.
  5. All communication devices, calculators and any unauthorized material are not allowed in examination room.
  6. Write your number on every page of your answer booklet.

SECTION A (30 Marks)

Answer All questions in this section.

  1. Choose the correct answers among the given alternatives and write its letter in the table below the questions.
  1. What are the two main branches of biology
  1. Cytology and virology
  2. Genetics and ecology
  3. Botany and zoology
  4. Botany and cytology
  1. What do you understand by the term hypothesis?
  1. An intelligent guess 
  2. An opinion
  3. A school of thought
  4. An idea
  1. A laboratory coat that protects clothes from chemicals and dirty;
  1. Gloves 
  2. Apron 
  3. Goggles 
  4. Tourniquet
  1. A room designed for an experiment and observation of samples is known as;
  1. Pharmacy 
  2. Classroom
  3. laboratory 
  4. Hospital
  1. A set of scientific assumption consistent with one another and supported by evidence but not fully proved is called:
  1. A fact
  2. A theory
  3. an experiment
  4. a hypothesis
  1. The action of change of the whole body is called;
  1. Locomotion 
  2. movement 
  3. sensitivity 
  4. regulation
  1. Bios means
  1. Living things b) study c) life d) study of life
  1. The study of structural and function of cells is called;
  1. Cytology 
  2. genetics 
  3. anatomy 
  4. theology
  1. The study of insects is called
  1. Microbiology 
  2. Virology 
  3. Entomologist 
  4. Entomology
  1. A substance that can burn your skin is called;
  1. Flammable 
  2. corrosive 
  3. Oxidant 
  4. Irritant

ANSWERS

i

ii

iii

iv

v

vi

vii

viii

ix

x











  1. Write TRUE if the statement is correct and FALSE if the statement is incorrect;
  1. The term biology has enabled man and woman to fight against one another
  2. The term biology is from Greek words, “bios” meaning study and “logos” meaning life
  3. Non-living things have the ability to produce new individuals of their own kind
  4. Human beings as one of the living things, understand oneself well by studying biology
  5. Excretion is the process by which waste products from the body are eliminated eg. Faeces
  6. Mounting the specimen on a microscope slide is one way of using microscope
  7. Closing all gas valves in the laboratory is a laboratory rule
  8. An organism is a living thing that is a complete entity
  9. Psychology is the study of internal structure of living things
  10. Studying biology enables us to understand all science

ANSWERS

i

ii

iii

iv

v

vi

vii

viii

ix

x











  1. Match the statement in List B with the correct statement on list A by writing the letter in the table given below the question.

LIST A

LIST B

  1. Study of animals
  2. Is the study of living things and their surroundings
  3. ..............is a room where scientific experiments are conducted
  4. ...............are those substances which speed up burning
  5. .........is the sign and the symbol for first aid
  1. Red cross
  2. Red colour
  3. Flammable
  4. Explosive
  5. Botany
  6. Zoology
  7. Ecosystem
  8. Ecology
  9. Laboratory
  10. Experimental room

ANSWERS

List A

i

ii

iii

iv

v

List B






  1. Fill the blanks
  1. ..................................... is the study of classification
  2. The proved theory supported by evidence is................................................
  3. The process by which energy is made available in living things is...................................................
  4. Scientific investigation begins with................................................
  5. An experiment that is set to make comparison with the test experiment is called.....................................................

SECTION B (50 MARKS)

  1. (a) What is a laboratory:

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

(b) List down any five laboratory safety rules;

  1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
  2. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
  3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
  4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
  5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
  1. (a) Briefly write down any five importance of studying biology;
  1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
  2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
  3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
  4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
  5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(b) What is biology?

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

  1. (a) What is first aid?

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(b) What is first aid kit?

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(c) Give any four importance of first aid;

  1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
  2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
  3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
  4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
  1. (a) What is a microscope?

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(b) Outline the six scientific process used in studying biology in its order;

  1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
  2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
  3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
  4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
  5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
  6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(c) Measuring tools cannot be 100% accurate, we can increase accurate of measurement by:

  1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
  2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
  3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SECTION C (20 MARKS)

  1. Give the use of the following laboratory equipment and apparatus;
  1. Fishing nets;

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

  1. Hand lens

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

  1. Pooter

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

  1. Petri dish

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

  1. Crusible

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

  1. Draw the diagram of a microscope and label all its parts;

LEARNINGHUBTZ.CO.TZFORM TWO BIOLOGY EXAM SERIES 45

THE PRESIDENT’S OFFICE MINISTRY OF EDUCATION, REGIONAL ADMINISTRATION AND LOCAL GOVERNMENT

SECONDARY EXAMINATION SERIES

BIOLOGY MID TERM EXAMINATION

FORM TWO-2021

Time: 2:30Hours

Instructions.

  1. This paper consists of section A, B and C with a total of 11 questions
  2. Answer all questions in section A and B and ONE question from section C.
  3. Section A carries 30 marks, section B 50 marks and section C 20 Marks
  4. All answers should be written in the spaces provided.
  5. All communication devices, calculators and any unauthorized material are not allowed in examination room.
  6. Write your number on every page of your answer booklet.

SECTION A (30 Marks)

Answer All questions in this section.

  1. For each of the items (i)-(x), choose the correct answer from the alternatives given.
  1. Which of the following is best use of adhesive bandage?
  1. Cleaning the wound
  2. Covering small wound
  3. Cleaning wound to kill germs
  4. Applying medicine
  1. Which of the following is not a cause of muscle cramps?
  1. Poor coordination of muscles
  2. Cold weather
  3. Drinking alcohol
  4. Excessive salts in the body
  1. Form one students were injected with a readymade vaccine against snake bites. That type of vaccination is an example of;
  1. Passive artificial
  2. Passive natural immunity
  3. Active artificial immunity
  4. Active natural immunity
  1. Tumaini has a new born baby. She is worried about measles. Tumaini can prevent her baby against measles by;
  1. Active artificial immunity
  2. Artificial passive immunity
  3. Active natural immunity
  4. Natural passive immunity
  1. Which of the following is not a requirement of personal Hygiene?
  1. Tooth brush and tooth paste
  2. Soap and clean water
  3. Mobile phone
  4. Towels
  1. Which of the following is not a characteristic of a virus?
  1. They reproduce when inside the host cell
  2. Have complex membraned cell organelle
  3. They have a protein coat called capsid
  4. They have capsids
  1. Which of the following is an advantage viruses
  1. They cause diseases
  2. They are source of protein
  3. They can attach and kill bacteria
  4. Lead to large scale epidemics
  1. Which of the following is not a feature of bacteria?
  1. They are unicellular
  2. All are parasitic
  3. They prokaryotic
  4. They can produce through binary fusion.
  1. The following are phyla in kingdom fungi. Which one is not?
  1. Bryophyta
  2. Ascomycota
  3. Zygomycota
  4. Basidiomycota
  1. Which one of the following is a characteristic of division Bryophyta?
  1. Plant body is not differentiated into roots, leaves and stem.
  2. They have well developed conductive tissues.
  3. The plant body is made up of hyphae.
  4. They store glycogen.
  1. Choose a word or a phrase from LIST A which matches or corresponds with response in LIST B and write the answer in the space provided.

LIST A

LIST B

  1. Sac-like cells which store ascopores
  2. An example of Zygomycota
  3. Female organs of mosses
  4. Poisons produced by fungi
  5. Leaflets of fern plants
  1. Mycoses
  2. Basidium
  3. Fungology
  4. Mycology
  5. Thallus
  6. Sporophytes
  7. Germatophyte
  8. Rhizopus
  9. Pinnae
  10. Antheridia
  11. Stipe
  12. Penicillium
  13. Asci frond
  14. Hyphae
  15. Archegonia
  16. Hyphae
  17. Sori
  18. stolon
  1. The following statements are either correct or incorrect. Write TRUE for a correct statement and FALSE for an incorrect statement.
  1. all bacteria are harmful
  2. protoctists are heterotrophic in nature
  1. euglena bloom are beneficial to fish
  2. paramecium has a contractile vacuole which regulates amount of water
  3. amoeba reproduces by binary fission
  4. viruses reproduces by cell division
  5. most viral diseases can easily be cured
  6. bacteria can be used in sewage treatment, by feeding on it and rendering chemicals harmless
  7. paramecium is an example of a complex cell
  8. the eye spot in euglena is used in photosynthesis
  1. Fill in the spaces below with the correct word or phrase
  1. When the pathogens enter the body they may produce  . . . . . . . .  . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . .  . . 

(ii) Any foreign substance which enters the body is called . . . . . . . .  . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . .  . . 

(iii) Pathogens and their toxins are examples of . . . . . . . .  . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . .  . . 

(iv) Babies get immunity from their mothers through . . . . . . . .  . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . .  . . 

(v) Introduction of weakened microbes into our body to offer protection is called. . . . . . . .  . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . . . .  . . 

SECTION B (50 Marks)

Answer all questions in this section.

5. a) What is a virus

b) Give reasons to support that viruses are;

i) Non-living

ii) Living things

6.List the following;

  1. Three advantages of fungi
  2. Two disadvantages of mosses
  3. Four divisions of kingdom plantae.

7. (a) what are muscles cramps

b) Give the causes of muscle cramp

c) Mention ways of preventing muscle cramps

8. a) Name one disease that is caused by the following;

i) Amoeba

ii) Paramecium

iii) Plasmodium

b) Draw and label clearly the structure of amoeba.

9. (a) distinguish between;

i) Food preservation and food storage

ii) refrigeration and freezing

iii) curing and smoking

b) Explain how the following methods can be used to preserve food

i) Smoking

ii) Pasteurization

iii) Using additives

SECTION B (20 Marks)

Answer One Question from this section

10. (a) What is waste?

(b) What is waste disposal

(c) Mention ways of disposing waste at home

(d) Describe the effects of poor waste disposal

11. Using examples, discuss the economic importance of Kingdom Fungi

LEARNINGHUBTZ.CO.TZFORM TWO BIOLOGY EXAM SERIES 41

THE PRESIDENTS OFFICE

MINISTRY OF LOCAL GOVERNMENT AND REGIONAL ADMINISTRATION

MOTHLY SERIES EXAMINATIONS

JANUARY 2021 BIOLOGY FORM 2

  1. For each of the items (i) –(x), choose the correct answer from among the given alternatives and write its letter in the box provided.
  1. When an animal cell is dipped in hypertonic solution, what will happen?
  1. Plasmolysis
  2. Crenation
  3. Turgidity
  4. Hemolysis
  5. Placcid.
  1. Green plants make their own food by photosynthesis, bacteria make food by a process called
  1. Phytosynthesis
  2. Photosynthesis
  3. Digestion
  4. Chemosynthesis
  5. Phototropisms
  1. Carrot stores its food in
  1. Stem
  2. Root
  3. Leaves
  4. Tuber
  5. Bulb.
  1. The end product of respiration in plants includes the following except?
  1. Energy
  2. Lactic acid
  3. Alcohol
  4. Carbon dioxide
  1. Which of the following is not a producer?
  1. Algae
  2. Fern
  3. Mushroom
  4. Maize.
  1. Which organisms belongs to kingdom plantae?
  1. Fern and amoeba
  2. Moss plant and mucor
  3. Liverwort and yeast
  4. Fern and moss
  1. The main cause of accidents in laboratory is………………..
  1. Carelessness
  2. Strictness
  3. Fire
  4. Falls
  1. The liquid induced into the body of an organism so as to increase antibody production is known as
  1. Tissue fluid
  2. Lymph
  3. Vaccine
  4. Plasma

xi.      Which feature prevents back flow of blood in the veins?

  1. Pressure
  2. Muscles
  3. Valves
  4. Thick muscle walls
  1. The behavior that is generally accepted in the society is called
  1. Good behaviour
  2. Good manners
  3. Chatty manners
  4. Table manners
  1. For each of the following items (i) – (x) , write True if the statement is true and false if the statement is false.
  1. All organisms are made up of cells………………………………………………….
  2. Malaria is caused by mosquito………………………………………………………
  3. Cholera is a non-communicable disease………………………………………...
  4. During breathing in, ribs moves upward and outwards,,,,,,,,,,,,,,,,,,,,,,,
  5. All arteries transport oxygenated blood……………………………………
  6. Hiv/aids nowadays has cure …………………………………………………..
  7. Botanists studies plants…………………………………………………..
  8. Natural classification is more confusing than artificial classification……………..
  9. Members of kingdom monera are eukaryotic………………………………………………..
  10. Eating upright when drinking or eating prevents chocking…………………………….
  1. Match the phrases in List A with the responses in list B by writing the letter of the correct answer below the corresponding item number in the table provided.

LIST A

LIST B

  1. Controls all activities of the cell
  2. Is the site where chemical reactions takes place.
  3. Is a selective membrane
  4. Stores food in animals
  5. Involved in cell division.
  1. Nuclear membrane
  2. Cell wall
  3. Cell membrane
  4. Centrioles
  5. Golgi apparatus
  6. Vacuoles
  7. Cytoplasm
  8. Nucleus.
  1. Complete each of the following statements by writing the correct answer in the spaces provided.
  1. An example of a unicellular organism without nucleus membrane…………………………………
  2. A type of waste that posses danger to living organisms………………………………………………..
  3. An organism that causes cholera disease…………………………………………………………..
  4. The study of virus is termed as…………………………………………………………………………..
  5. Naming of organisms using  two names is termed as…………………………………………………….

SECTION B (50 marks)

ANSWER ALL QUESTIONS IN THIS SECTION

  1. (a) Differentiate a unicellular organism from multicellular organisms?

(b) Mention three parts of a cell that are present in plant cells but absent in animal cells.

(c) What are the features of a cell membrane?

6. (a) State three causes of fire accidents in the laboratory

(b)  Draw a light microscope and label all its parts correctly 

7. (a) What is immunity?

(b) Differentiate natural immunity from artificial immunity

(c) Explain the importance of good health to an individual.

8. (a) What are deficiency diseases?

(b) Mention any five deficiency diseases

(c) State four factors that contribute to deficiency diseases in many communities.

9. (a) Anitha claims that first aid is an exercise in futility and should not be carried out but a person should be taken to hospital. Explain the importance of first aid to anitha.

(b) Mention six items that are found in first Aid Kit

 SECTION C ( 20 Marks)

Answer One Question from this section.

10. Bacteria are both harmful and beneficial to humans. Discuss this statement.

11. Discuss waste disposal under the following headings

  1. Meaning of waste disposal
  2. Methods of waste disposal
  3. Effects of poor waste disposal.

LEARNINGHUBTZ.CO.TZFORM TWO BIOLOGY EXAM SERIES 37

THE PRESIDENT'S OFFICE

MINISTRY OF REGIONAL GOVERNMENT AND LOCAL GOVERNMENT

AUGUST-SEPTEMBER   EXAMINATION SERIES

BIOLOGY  FORM-2

2020

TIME: 2:30 HRS

Instructions. 

  1. This paper consists of sections A, B and C with a total of eleven (11) questions.
  2. Answer all questions in section A and B and one (1) question from section C
  3. All writing must be in blue or black ink except drawing which must be in pencil.
  4. Calculators, cellular phones and any unauthorized materials are not allowed in the examination room.
  5. Write your Examination Number at the top right corner of every page.

 

SECTION A (30 Marks)

Answer all questions in this section.

(i)The following are methods involved when scientists study things systematically except:

  1. Identifying the problem
  2. Guess the conclusion
  3. Formulating hypothesis
  4. Experimentation

(ii)Which part of a microscope is responsible for magnification of a specimen?

  1. Mirror
  2. Eyepiece
  3. Stage
  4. Base

(iii)Which step will you first take when giving First Aid to a bus accident victim who has severe bleeding?

  1. Wash the wound with plenty of water to remove blood.
  2. Loosen the tightened clothes to supply oxygen to the victim.
  3. Use your finger to apply pressure direct to the bleeding point.
  4. Ask the person to go to hospital immediately.

(iv)A viral disease transmitted through sexual intercourse is known as.

  1. gonorrhoea
  2. typhoid
  3. AIDS
  4. small pox

(v)In the human digestive system the stomach is known as:

  1. a tissue
  2. a cell
  3. an organ
  4. an organism

(vi) Which of the following is not a proper method of waste disposal?

  1. Use of landfill
  2. Make pit latrine
  3. Recycling of materials
  4. Burning plastic waste at home

(vii)An organism with a rigid protective wall made up of chitin material is a representative of which Kingdom?

  1. Fungi
  2. Monera
  3. Plantae
  4. Protoctista

(viii)The disease and disorder of the human circulatory system includes:

  1. Arteriosclerosis and heart burn
  2. Blood pressure and sickle cell anemia
  3. Blood pressure and oedema
  4. Leukemia and heart burn.

(ix)The end product of fat/lipids in digestion process is called:

  1. Amino acid
  2. Peptide
  3. Glucose
  4. Fatty acids and glycerol

(x)The product of anaerobic respiration process in animals is:

  1. uric acid
  2. lactic acid
  3. sulfuric acid
  4. hydrochloric acid

2.Write TRUE if the statement is correct or FALSE if the statement is not correct.

i) A microscope is an instrument used to observe small objects which cannot be seen by using our naked eyes .........

(ii) Plant cells possess cellulose cell walls while animal cells do not .........

(iii)We can use dry wooden stick to move a victim of electric shock from the imagesource of electric current. .........

(iv)Botanists study both plants and animals .........

(v)It is safe to warm the room by using charcoal when people are sleeping the whole night inside the room .........

(vi) Onions store food in leaves while carrots store food in root tubers .........

(vii) Gaseous exchange in fish takes place through spiracles .........

(viii)Materials which can be recycled include aluminium cans and magazines

(ix)All living things are made up of small units known as cells .........

(x)Biology is the study of non-living things .........

3.Match the phrases in List A with the responses in List B by writing the letter of the correct response from List B below the item number of List A in the table provided.

LIST A

LIST B

(i) A term used for organisms with four chambered stomach.

(ii) Malnutritional disorder caused by deficiency of protein in children.

(iii)Enzymes responsible for digestion of protein.

(iv)Malformation of bones caused by deficiency of vitamin "D" in the diet.

(v)Failure to see in dim light due to deficiency of vitamin A" in a diet.

Painful sensation caused by regurgitation of stomach contents. image

(vii) Bleeding of gums and poor healing of the wound due to deficiency of vitamin "C".

(viii)Painful sore in the lining of the digestive

system.

(ix)The substance responsible for coagulation of milk.

(x)A person has loss of appetite, and loss of imagenervous sensation due to deficiency of vitamin "Bl" in a diet.

  1.  Night .blindness
  2. Scurvy
  3. Pepsin
  4. Pellagra
  5. Beri-beri
  6. Ulcers
  7. Rickets
  8. Kwashiorkor 
  9. Marasmus 
  10. Dental caries
  11. Heartburn
  12. Rennin
  13. Anorexia nervosa
  14. Ruminants
  15. Bulimia nervosa

SECTION B

4.(a) List the major groups of living organisms. (Mention 5)

(b)Figure 1 represents an organism which feeds on dead organic matter. Study the diagram carefully then answer the questions that follow:

image

(i)What is the name of organisms in Figure 1?

(ii)Name the part labelled with letter A.

(iii) Mention the Phylum in which the organism you named in (a) (i) belongs.

(c) Outline two disadvantages of Kingdom Fungi.

5.What do you understand by the term "Personal hygiene"?

(b) State four principles of personal hygiene. (c) State four principles of good manners:

6.Define the following terms:

(i) Diffusion (ii) Osmosis

(b) Explain why a red blood cell immersed in a low concentrated solution bursts?

(c) State one function of each of the following blood cells:

(i) Red blood cells (Erythrocytes) (ii) Platelets

7.(a) What is First Aid?

(b) List four components of the First Aid Kit.

(c) State the procedures of giving First Aid to a person who has been bitten by a snake.

8.Define the terms "food chain" and "food web" as used in Biology.

(b) Construct a food chain by using the following organisms:

Grasses, Snake, Grasshopper, Frog.

(c) Explain the significance of food chain and food web in the real life situation. (Mention 2)

SECTION C

9. Explain the causes, mode of transmission and prevention measures of cholera as one of the communicable diseases in Tanzania.

10. Describe the causes, mode of transmission and prevention measures of Tuberculosis disease in the respiratory system.

 

 

 

 

 

 

 

LEARNINGHUBTZ.CO.TZFORM TWO BIOLOGY EXAM SERIES 30

THE PRESIDENT’S OFFICE MINISTRY OF EDUCATION, LOCAL ADMINISTRATION AND LOCAL GOVERNMENT

BIOLOGY- BACK TO SCHOOL EXAMINATION-JUNE

FORM TWO

Time 2:30 Hours JUNE 2020

INSTRUCTIONS

  1. This paper consists of sections A, B and C with a total of eleven (11) questions.
  2. Answer all questions in section A and B and one (1) question from section C
  3. All writing must be in blue or black ink except drawing which must be in pencil.
  4. Calculators, cellular phones and any unauthorized materials are not allowed in the examination room.
  5. Write your Examination Number at the top right corner of every page.

SECTION A (30 Marks)

Answer all questions in this section.

1. For each of the items (i) – (x), choose the correct answer from among the given alternatives and write its letter in the box provided.

(i) The branch of science which deals with the study of living things is known as

  1. Biology
  2. Ecology
  3. Botany
  4. Zoology

(ii) The part of the alimentary canal which rolls the chewed food into bolus is called

  1. Tongue
  2. Oesophagus
  3. Pharynx
  4. Epiglottis.

(iii) Which one of the following is recommended as a First Aid procedure for a victim who has been stung by bee?

  1. Sitting quietly
  2. Giving huge amount of water to the victim
  3. Applying baking soda paste on the bee stung area.
  4. Leaving the cotton on the stung area for few minutes.

(iv)A term which describes organisms with similar nutritional habits is known as:

  1. community
  2. trophic level
  3. food chain
  4. food web

(v)Which of the following labels indicates a substance which catches fire easily? .....

  1. Corrosive
  2. Flammable
  3. Harmful
  4. Oxidant

(vi)Why are bats and birds not placed in the same species while they are closely related organisms? ...............

  1. They cannot interbreed to produce a fertile offspring
  2. They can interbreed to produce a fertile offspring
  3. One lays eggs and another can give birth
  4. One possesses feathers and another short beak.

(vii) Insufficient food rich in protein to children especially infants result into nutritional deficiency disease called.

  1. Marasmus
  2. Obesity
  3. Kwashiorkor
  4. Ricketts

(viii) The blood vessel which carries blood from the lungs to the heart is called:

  1. pulmonary artery
  2. vena cava
  3. pulmonary vein
  4. renal vein

(ix) The root-like structure of a moss plant which provides anchorage to the ground is called

  1. capsule
  2. spores
  3. seta
  4. rhizoids

(x) Which of the following cell structures differentiates an animal cell from a plant cell?

  1. cytoplasm
  2. cell wall
  3. pancreatic juice
  4. nucleus

2. Match each item in List A with a correct response in List B by writing its letter bellow the number of the corresponding item in the table provided.

LIST A

LIST B

(i) The highest rank in classification

(ii) A group of organisms that can interbreed to produce fertile offspring.

(iii) A sub-group of kingdom Plantae in which ferns belongs

(iv) A group of genera with similar characteristics.

(v) A sub-group of highest rank of classification.

A. Kingdom

B. Phylum

C. Class

D. Species

F. Family

G. Genus

H. Order

K. Kingdom Pteridophyta

L. Phylum Bryophyta

O. Phylum Basidiomycota

P. Phylum Ascomycota

Q. Kingdom Protoctista

3. For each of the items (i) - (x), write True if a statement is correct or False if a statement is not correct in the space provided.

(i) Botany is the study of animals

(ii) Gaseous exchange in mammals takes place in the nose and mouth

(iii) One enzyme can act on several food substances ...............

(iv) During inhalation the ribs move upwards and outwards...............

(v) Anemia is a condition in which a patient has few erythrocytes .

(vi) Landfill is a way of disposing domestic wastes ...............

(vii)Amylase is an enzyme which acts on protein ...............

(viii)Consumers in the ecosystem produce their own food...............

(ix)Syphilis is a communicable disease ...............

(x)All bacteria are harmful to man ...............

4. Complete each of the following statements by writing the correct answer in the space provided.

(i)A temporary treatment carried out to a sick person before arriving to the hospital is termed as .

(ii)Turning waste into useful products is termed as .

(iii)A place where solid waste is buried in the ground is called .......... .

(iv)An involuntary ejection of substances from the stomach through the mouth is called .

(v)The combustion of waste at high temperature is known as ...............

SECTION B

Answer all questions in this section

5. (a) Mention four types of organs found in animal body.

(i) ……………………………………………………………………

(ii) ……………………………………………………………………

(iii) ……………………………………………………………………

(iv) ……………………………………………………………………

5. (a) State the meaning ofthe following terms as used in Biology.

(i)A cell ..

(ii)System

(iii)Organ ............

6.Study the sculpture of a villus below and then answer the questions that follow:

image

(a) In which part of the alimentary canal is villus found? ... ...

(b) Name the parts labelled with letters A, B and C

(c) State three adaptations of the villus for the absorption of food in the alimentary canal.

7. Define the following terms:

(i)Parasite

(ii)Host

(iii)Community

(b)Give two examples for each of the following group ofparasitic organisms:

(i)Endoparasite

(ii)Ectoparasite


8.(a) Define the following terms:

(i) Laboratory ...............„.................... ..

(ii) Biology ................


(iii) Test tube ................................... ..... .. (iv) Botany .

(b) State the uses of each of the following laboratory apparati:

(i)Microscope ......................... .. .

(ii)Thermometer ................................ .

(iii) Test tube holder ........ ....

9.(a) What is First Aid?

(b) List four components of the First Aid Kit.

(c) State the procedures of giving First Aid to a person who has been bitten by a snake.

SECTION C

Answer any one question.

10. Explain the cause, two symptoms, transmissions and prevention measures of cholera.

11.Elaborate any three traditional and three modern methods used in food processing, preservation and storage.

LEARNINGHUBTZ.CO.TZFORM TWO BIOLOGY EXAM SERIES 20

THE PRESIDENT’S OFFICE MINISTRY OF EDUCATION, LOCAL ADMINISTRATION AND LOCAL GOVERNMENT

BIOLOGY- TERMINAL EXAMINATION-MAY

033                                                   FORM TWO

TIME: 2½HRS                                                                                     

NAME: _____________________________________

INSTRUCTIONS

  1. This paper consists of sections A,B, and C
  2. Answer all questions in section A and B and one question from section C
  3. All writing should be in blue or black ink pen
  4. All answers should be in separate answer sheet
  5. Clarity and neatness will be rewarded.

SECTION A: 20 MARKS

1. MULTIPLE CHOICE QUESTIONS

(i) The following are list of laboratory apparatus. Identify the odd one out.

  1. Pooter
  2. Quadrat
  3. Sweep net
  4. Fishing net

 (ii)  Amina was bitten by a bee; which of the following should not be done

  1. Wash the area with soap and water
  2. Apply baking soda to the area
  3. Careful remove strings with your finger or sharp object
  4. Apply cold compress to remove pain

 (iii) Identify a gas that is dangerous to ozone layer if   released into atmosphere

  1. Carbon dioxide
  2. Nitrogen dioxide
  3. Sulphur dioxide
  4. Methane

 (iv)  After cholera outbreak, residents of mkwajuni village were vaccinated against the disease. The type of immunity carried out here will be:

  1. Artificial active immunity
  2. Natural passive immunity
  3. Natural active immunity
  4. Artificial passive immunity

(v) Which of the following is not a sign of Gonorrhea?

  1. Swollen lymph nodes
  2. Yellow discharge from vagina/penis
  3. Irregular menstruation
  4. Itching in private parts

 (vi) Among the following are functions of nucleus. Which one is not?

  1. Determine the chemical processes that take place in cell
  2. Initiate cell division
  3. Control function of all parts of the cell
  4. Determine hereditary characteristic of the cell

 (vii)  Which of the following is odd one out

  1. Mycobacterium tuberculosis
  2. Escherichia coli
  3. Treponema pallidum
  4. Salmonella typhi

 (viii) Which statement is false about division Bryophyta?

  1. Lack vascular tissues
  2. Found in most areas
  3. Need water for fertilization
  4. Has sporophyte as dominate stage

 (ix) Which of the following is True about digestion of starch

  1. Occur in mouth and esophagus
  2. Occur in mouth only
  3. Enzymes digesting starch are produced in stomach
  4. It end product of digestion is absorbed in lacteal 

 (x)  The chemical compound that can cause death in blood is

  1. Oxyhaemoglobin
  2. Carboxyhaemoglobin
  3. Carbominohaemoglobin
  4. Carbonhaemoglobin

 MATCHING ITEM QUESTIONS

2. (a) Match the items in list A with response in list B by writing the letter of correct response beside item number in separate answer sheet provided

LIST A

LIST B

(i) Prevents clotting of blood in our bodies 

(ii) Soluble protein

(iii) Occur when blood with similar antigen and antibody are mixed.

(iv) Fight pathogen through engulfing 

(v) Rapture of blood vessels leading to brain

 

  1. Fibrinogen
  2. Plasma
  3. Blood group AB
  4. Fibrin
  5. Leucocytes
  6. Thromboplastin, vit.k, calcium
  7. Agglutination
  8. Stroke
  9. Heparin
  10. Phagocytes
  11. Compatibility
  12. Thrombin
  13. Incompatibility
  14. Clot
  15. Blood group O
  16. thrombosis

 (b) Fill the gaps below with the correct answer.

  1. Group of organisms with similar nutritional habits…………………
  2. An organism that causes malaria……………………………
  3. An organism that feed on dead decaying matter………………..
  4. Clamping together of blood………………………………
  5. Bursting of red blood cells when put in hypotonic solution………………….

3. The following statements are either true or false. Write T for True statement and F for false statement on separate answer sheets.

  1. Destruction of red blood cells which are worn out occur in spleen
  2. Blood group AB is always a universal receipient
  3. A bird nest in a tree illustrates a mutualism feeding relationship
  4. A corm is a specialized stem which store food
  5. Transpiration occurs only through stomata
  6. Food in ileum is normally acidic
  7. All viruses are harmful to living organism
  8. Prokaryotes can reproduce by conjugation
  9. Kissing can spread/transmit HIV/AIDS
  10. Buying rechargeable batteries and battery chargers is a way of reducing wastes

 SECTION B

4. The diagram below illustrates a physiological process in red blood cell of mammals when placed in different solution.

image

 a) (i) What type of solutions are A  B and C?

(ii) Explain the biological process that has taken place in A and B

b) What would happen if a plant cell is placed in solution A and B

c) Explain why amoeba can successfully survive in solution B

 5. (I) The diagram below shows part of plant root.

 

  a) Name parts labeled  A, B and C

b) What is the role of cell labeled D?

c) Explain how water moves from from soil until it reaches vascular bundles

d) Name two forces involved in water uptake  in above cell

(II). List two factors that affect rate of active transport

6.(a) What is the primary source of energy in an ecosystem?

b) Give the trophic levels of the following

  1. A cow
  2. Bacteria
  3. Lion

c) Ecological pyramich tapper toward apex. Give two reasons

d) Draw and label structure of mitochondrion

7. a) Explain the following physiological processes

  1. Photosynthesis
  2. Chemosynthesis

b) Write an equation for reaction occurring during the following stage

  1. Light stage
  2. Dark stage

c) Mention 3 internal factors which affect rate of photosynthesis

d) Give the function of the following

  1. Eye piece
  2. Revolving nose piece
  3. Condenser

8. a)Name the causal organism of the following diseases

  1. Malaria
  2. Amoebic dysentery
  3. Typhoid

b) Name the substances made of the following nutrients that are involved in blood clotting

  1. Protein
  2. Vitamin
  3. Enzyme
  4. Mineral element

c)  Proteins are large molecules made up of long chains of amino acids joined together through a bond called

d) State the main role of the following mineral to plants

  1. Nitrogen
  2. Magnesium

 SECTION C. ESSAY QUESTION

Answer only One question

9. With use of 8 points; explain the effects of poor waste disposal in the community

 10. Explain digestion process that take place to a ball of ugali from when it is kept in mouth until it reaches anus.

LEARNINGHUBTZ.CO.TZFORM TWO BIOLOGY EXAM SERIES 11

PRESIDENT’S OFFICE

MINISTRY OF EDUCATION AND VOCATIONAL TRAINING

MID TERM EXAMINATIONS- MARCH 2020

033        BIOLOGY

 

Duration: 2:30 Hours

 

Instructions.

 

  1. This paper consists of sections A, B and C with a total of eleven (11) questions.
  2. Answer all questions in section A and B and one (1) question from section C
  3. All writing must be in blue or black ink except drawing which must be in pencil.
  4. Calculators, cellular phones and any unauthorized materials are not allowed in the examination room.
  5. Write your Examination Number at the top right corner of every page.

 

SECTION A (30 Marks)

Answer all questions in this section.

 

1. For each of the items (i) – (x), choose the correct answer from among the given alternatives and write its letter in the box provided.

 

 (i) An experiment usually tests:

  1.              Application
  2.               Evaluation
  3.               Hypothesis
  4.              Problem identified

(ii) Animals show irritability; this means they:

  1.              Always move
  2.               Are capable of growing
  3.               Reproduce
  4.              Respond to stimuli

(iii) The movement of substances in and out of the cell is controlled by:

  1.              Cell membrane
  2.               Cell wall
  3.               Cytoplasm
  4.              Vacuole

(iv) The ability of the human body to resist infections caused by micro organisms is known as:

  1.              Immunity
  2.               Inoculation
  3.               Treatment
  4.              Vaccination

(v) One of the following is not a risky behavior.

  1.              Accepting favours and gifts from people of the opposite sex
  2.               Having many sexual partners
  3.               Keeping good company and avoiding immoral friends
  4.              Using drugs such as bhang and cocaine.

(vi) Rickets in children and osteomalacia in adults are conditions caused by lack of:

  1.              Vitamin A
  2.               Vitamin B
  3.               Vitamin C
  4.              Vitamin D

(vii) Which of the following will be a step to follow in a scientific procedure after formulating a hypothesis?

  1.              Conclusion
  2.               Experimentation
  3.               Observation
  4.              Problem identification

(viii) The best evidence that two organisms belong to the same species is that they:

  1.              Can breed with other organisms which are not of their kind
  2.               Live in the same habitat and have similar ways of nutrition
  3.               Produce fertile off- springs when interbred under natural conditions.
  4.              Produce infertile off – springs when interbred.

(ix) One of the following diseases is non – communicable:

  1.              Cholera
  2.               Kwashiorkor
  3.               Malaria
  4.              Tuberculosis

(x) Absorption of food takes place in the:

  1.               Large intestine
  2.               Liver
  3.               Small intestine
  4.              Stomach

 

2. The following statements are either correct or not correct. Write TRUE if the statement is correct or FALSE if the statement is not correct.

 

(i)     A cell is the basic functional unit of life

(ii)  A victim of an electric shock should be moved by using metallic object

(iii) Sexually Transmitted Diseases can be treated using painkillers

(iv) The best way to dispose clinical syringes is by recycling

(v)   The use of unsterilized surgical and skin piercing tools can lead to HIV/AIDS transmission

(vi) A group of interdependent organisms living in an environment is called a community

(vii) Animal cells have no chloroplasts

(viii)  Maintaining personal hygiene reduces the risk of infection

(ix) Proteins in the diet are needed for growth and repair

(x)   Malaria is transmitted by a plasmodium

 

 

3.

List A

List B

(i)     An enzyme that converts lipids to fatty acids and glycerol

(ii)  It contains an acidic medium for digestion

(iii) Sites for dumping waste and covering it with soil

(iv)     The process of burning waste until it is completely destroyed

(v)      The process of turning waste into new products

 

  1. Cow
  2. Duodenum
  3. Ferns
  4. Human being
  5. Incineration
  6. Landfills
  7. Lipase
  8. Pit latrines
  9. Recycling
  10. Typhoid

 

 

b. Complete each of the following statements by writing the correct answer in the space provided.

(i)     The elements required in large quantities are called………………..

(ii)  The loss of nutrients into ground due to water logging…………….

(iii) Classification based on external features only……………

(iv)  Have two life-cycles which alternate to complete life………………

(v)   Organisms that feeds on dead decaying matter………

SECTION B 50 Marks

4. (a) Describe the procedures of giving First Aid to a victim of a snake bite.

    (b) Give a reason as to why it is necessary to put on gloves when giving first Aid to a bleeding person.

 

5. (a) What is classification?

    (b) List four advantages of fungi

    (c) Outline two disadvantages of fungi

 

 

6. (a) (i) What do you understand by the term “laboratory”?

          (ii) Outline four qualities of a good laboratory

 

    (b) Mention one function of each of the following apparati:

(i)     Petri dish

(ii)  Mortar and pestle

(iii) Hand lens

(iv) Thermometer

 

7. (a) What is meant by the term “agent of diseases”?
    (b) Name the agent for each of the following diseases:

(i)     Common cold

(ii)  Cholera

(iii) Dysentery

(iv) Bilharzia

 

8. (a) What do you understand by the term “Puberty”

    (b) Mention four requirements of personal hygiene

    (c) State two ways of maintaining personal hygiene during puberty.

9. (a) What do you understand by the term “water borne diseases” as used in Biology?

………………………………………………………………………………………………………………………………………………………………………………………………………………………………

     (b) Name any three water borne diseases.

(i)     ……………………………………………………………………

(ii)  ……………………………………………………………………

(iii) ……………………………………………………………………

 

     (c) What would happen if a health person drinks unboiled water contaminated with the following?

 (i) Salmonella typhi…………………………………………………………………………………..

 (ii) Entamoeba histolytica……………………………………………………………………………

 

SECTION C

Essay writing:

 

10. Write an essay on kwashiorkor using the following guidelines:

  • Meaning
  • Cause
  • Symptoms
  • Effects
  • Prevention and control

 

11. Write an essay on tuberculosis using the following guidelines:

  • Cause
  • Transmission
  • Signs/symptoms
  • Effects
  • Prevention and control

LEARNINGHUBTZ.CO.TZFORM TWO BIOLOGY EXAM SERIES 1

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