BIOLOGY FORM TWO NEW NECTA FORMAT


 THE PRESIDENT’S OFFICE

REGIONAL ADMINISTRATIVE AND LOCAL GOVERNMENT

FORM TWO EXAMINATIONS 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 MODAL SERIES 20

LEARNING HUB TANZANIA

BIOLOGY – TERMINAL EXAMINATION

033                                                                     FORM TWO

TIME: 2½HRS                                                                                                         

NAME: _____________________________________                        CLASS:___________

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:

  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

  1. 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)                  Neutralizes heparin

iii)                Soluble protein

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

v)                  Blood can be mixed without causing any problem

vi)                Has no antigen on it red blood membrane

vii)              Fight pathogen through engulfing

viii)            Extra antigen found in same people

ix)                Rapture of blood vessels leading to brain

x)                  Cause elephantiasm
  1. Erythroblastosis
  2. Rhesur factor
  3. Fibrinogen
  4. Plasma
  5. Blood group AB
  6. Fibrin
  7. Leucocytes
  8. Thromboplastin, vit.k, calcium
  9. Agglutination
  10. Stroke
  11. Heparin
  12. Phagocytes
  13. Compatibility
  14. Thrombin
  15. Filarial worms
  16. Incompatibility
  17. Clot
  18. Blood group O
  19. Culex mosquito
  20. thrombosis

 

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

i)                    Destruction of red blood cells which are worn out occur in spleen

ii)                  Blood group AB is always a universal receipient

iii)                A bird nest in a tree illustrates a mutualism feeding relationship

iv)                A corm is a specialized stem which store food

v)                  Transpiration occurs only through stomata

vi)                Food in ileum is normally acidic

vii)              All viruses are harmful to living organism

viii)            Prokaryotes can reproduce by conjugation

ix)                Kissing can spread/transmit HIV/AIDS

x)                  Buying rechargeable batteries and battery chargers is a way of reducing wastes

 

 

 

 

 

SECTION B

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

C:wampwwwafricaimagesOsmotic-pressure-on-blood-cells-diagram.jpg

 

 

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

 

  1. I. The diagram below shows part of plant root.

 

 

 

C:wampwwwafricaimages8269242.jpg

 

 

 

 

 

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

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

b) Give the trophic levels of the following

i)        A cow

ii)      Bacteria

iii)    Lion

c) Ecological pyramich tapper toward apex. Give two reasons

d) Draw and label structure of mitochondrion

  1. a) Explain the following physiological processes

i)     Photosynthesis

ii)   Chemosynthesis

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

i)     Light stage

ii)   Dark stage

c) Mention 3 internal factors which affect rate of photosynthesis

d) Give the function of the following

i)     Eye piece

ii)   Revolving nose piece

iii) Condenser

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

i)     Malaria

ii)   Amoebic dysentery

iii) Typhoid

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

i)     Protein

ii)   Vitamin

iii) Enzyme

iv) 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

i)     Nitrogen

ii)   Magnesium

 

 

 

SECTION C. ESSAY QUESTION

Answer only One question

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

 

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

1

 

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