PRESIDENT’S OFFICE, REGIONAL ADMINISTRATION AND LOCAL GOVERNMENT

SECONDARY EXAMINATION SERIES,

MID TERM ONE – MARCH-2024

BIOLOGY FORM THREE

Time: 3Hours

Instructions 

1.         This paper consists of sections A, B, and C with a total eleven (11) questions.
2.         Answer all question in the sections A, B and two (2) questions from section C.
3.         Section A carries sixteen (16) marks, section B fifty four (54) marks and section C carries thirty (30) marks.
4.         All writing should be in blue or black pen, except for diagrams that must be drawn in pencil.
5.         Communication devices and any unauthorized materials are not allowed in the examination room.
6.         Write your Examination Number on every page of your answer booklet (s)

SECTION A

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

1.  John has cardiovascular disease. Which of the following does not contribute to it

1. Dietary fibre
2. Smoking
3. Fatty foods
4. Lack of exercise
5. Over-weight

2.      Which of these diseases is not caused by fungi

1. Wheat rust
2. Candidiasis
3. Influenza
4. Powdery mildew
5. Maize rust

3.   Bread mould is an example of

1. Byrophyta
2. Pteridophyta
3. Zygomycota
4. Basidiomycota
5. Coniferophyta

4.    Byrophytes are said to be most primitive plants on earth because

1. They grow on wet areas
2. They do not produce seeds
3. They produced assexually and sexually
4. They lack vascular tissues
5. They lack chlorophyll

5.      Which part protects lungs from injury and shock?

1. Trachea
2. Ribs
3. Bronchus
4. Epiglottis
5. Diaphragm

6.    A patient was confirmed to be suffering from meningitis after attending Mawenzi Hospital. How cam disease be prevented from spreading?

1. Eliminating fleas
2. Abstaining from sex
3. Isolating the patient
4. Killing water snail
5. Cutting long grasses

7.  Monica eats a meal consisting of maize (ugali) and beef (meat). Where did digestion of meat start in alimentary canal?

1. Mouth
2. Oesophagus
3. Stomach
4. Ileum
5. Duodenum

8.     Juma had problem with liver and bile could not be produced. Which of the following food digestion will be impaired?

1. Ugali
2. Cassava
3. Beans
4. Fruits
5. Fatty foods

9.    The enzyme that convert starch to maltose is

1. Lipase
2. Sucrose
3. Peptidase
4. Amylase
5. Trypsin

10.      Which of thr following is not transported by plasma?

1. Nutrients
2. Hormones
3. Waste products
4. Feaces
5. Respiratory gases

2.         Match the parts of digestive system on given in list A and list B by writing correct answer on space provided.

SECTION B

(54 MARKS)

Answer all questions in this section

3.         James is having painful burning sensation around the middle of his chest whenever he eats spicy food. He’s also having a problem of passing out very hard stool

1.    Identify possible digestive disorder he’s facing
2.    What would you advice him in order to alleviate the problem
3.    Identify causes of such problems

4.         Mention the components of gastric juice and explain their function
5.         The leaf is main organ for photosynthesis.

1.          explain how it is adapted to its function
2.          What is the significant of photosynthesis to living organism?

6.         Briefly explain the following terms;

1.     Carbon dioxide fixation
2.  Photosynthesis
3.      Palisade mesophyil
4.       Photolysis

(b)Differentiate light stage and dark stage of photosynthesis

7.         Form two students from Jangwani Secondary School carried out a survey to determine numbers of organism in their school garden. They recorded their findings as shown below

1.             Which of the above organism are

1.     Producers
2.  Primary consumers

2.             Draw a possible food chain to show the energy flow in the garden
3.             (i) Is food chain above stable?

(ii) Give reason for your answer in 7 (c) (i) above 

(iii) What can be done to sustain the food chain in school garden?

8.         (a) Give a reason for the following

1.     Animal cell burst when placed in pure water where as plant cell does not
2.  An animal cell shrinks when placed in concentrated solution.

             (b) Explain three factors that affect the rate of diffusion.

SECTION C

30Marks

9.         Briefly explain the following

1.             Arteries have thick-walled muscular and elastic walls
2.             Arteries do not need valves
3.             Small organism like amoeba and Paramecium do not need circulatory system

10.    Describe the function of human skeleton
11.    Poor waste products disposal creates problems in the environment. In six points justify the statement.

PRESIDENT OFFICE REGIONAL ADMINISTRATION AND LOCAL GOVERNMENT

SECONDARY EXAMINATION SERIES 

COMPETENCE BASED ASSESSMENT

033/1 BIOLOGY FORM THREE 

NEW EXAM FORMAT-2023

MID-TERM EXAMS MARCH – 2023 

Time: 3:00 Hours

Instruction

1. This paper consists of sections A, B and C with a total of eleven (11) questions.
2. Answer all questions in sections A and B and one (1) question from section C
3. Except for diagrams that must be drawn in pencil, all writing should be in blue or black ink.
4. Calculators, cellular phones and any unauthorized materials are not allowed in the examination room.
5. Write your Examination Number on every page of your answer booklet(s)

SECTION A 16 Marks

Answer All Questions

1. For each of items (i) – (x), Choose the correct answer from among the given alternative beside item number in answer booklet provided

1. The body of a Fungus is Organized into thread like structures called

1. Chitin
2. Hyphae
3. Mycellum
4. Thallus
5. sori

2. the leaves of a fem plant are called

1. Pinnae
2. Rachis
3. Fronds
4. Prothallus
5. Hyphae

3. The three parts responsible for the basic structure and Function of any cell are

1. Nucleus, cell membrane, cytoplasm
2. Nucleus, nucleolus and cytoplasm
3. Nucleus, cell membrane, and cell wall
4. Cell membrane, cell wall and cytoplasm
5. Cell vacuole, chloroplast, mitochondrion

4. The neuron found in human being is an example of

1. Tissue
2. Cell
3. Organ
4. Organelle
5. system

5. a structure that allows air to enter the trachea and prevent food from entering the wind pipe is known as

1. glottis
2. Tongue
3. Soft plate
4. Mouth
5. Epiglottis

6. Which food substance can be tested by using iodine solution?

1. Protein
2. Starch
3. Carbohydrate
4. Non-reducing sugar
5. Reducing sugar

7. The reason why rabbits are Primary consumers is because

1. Feed on animals
2. Feed on plants
3. Feed on bacteria
4. Feed on Fungi
5. Make their own food

8. Identify the wrong statement about monocots

1. Have taproots
2. Have parallel venation
3. Floral parts are in three or multiples of three
4. Lack pith
5. Have monocot roots

9. Joints are held together by

1. Ligaments
2. Cartilage
3. Tendon
4. Muscles
5. Bones

10. Plants are said to be vascular if

1. They contain Phloem
2. They Contain Xylem
3. Contain Xylem and Phloem
4. Contain Xylem only
5. They contain Xylem and Cambium only

2. Match the description of the parts of skeleton in List A with corresponding Phrase/Terminology in List B by writing the letter of correct response beside item number in answer booklet.

SECTION B (54 marks)

Answer all questions in this section

3. (a) It is necessary for Organisms to move from one point to another. Justify this statement by giving four points.

(b) Proper food preservation can prevent hunger. Justify this statement by explain four modern method of food preservation

4. (a) James has Just reached Fourteen Years. Identify five changes that might be observed on the body of James

(b) Explain the needs of adolescents

5. (a)What is a skeleton?

(b)Describe the function of human skeleton

(c) Artificial classification is no longer popular; Justify this statement by giving five points

6. (a) During a group discussion; Halima Suggested that Bryophytes and coniferophytes are similar in every aspect. Do you agree with her? Given reasons for your answer.

(b) How does Osmosis help plants to maintain their shape?

(c) Plasmodium in a protoctista. Describe the main features of kingdom protoctista.

7. (a)What would have to organism if mitochondrion are removed from body?

(b)Differentiate Photosynthesis and respiration

8. (a)What do you understand by the terms

1. Plasmalemma
2. Protoplasm
3. Protoplast

(b)Which organelles are you likely to find on

1. Aging cells
2. Actively dividing cells
3. Enzyme secreting cells

SECTION C (30 Marks)

Answer any two questions from this section.

9. Describe the significance of Transport of materials in Living Organism.

10. What is the economic importance of Anaerobic respiration?

11. Describe the economic importance of angiosperms

THE PRESIDENT’S OFFICE

MINISTRY OF EDUCATION, REGIONAL ADMINISTRATION AND LOCAL GOVERNMENT

COMPETENCE BASED SECONDARY EXAMINATION SERIES

BIOLOGY 1  MID TERM  EXAMINATION

FORM THREE-2022

Time: 3Hours

Instructions.

1.    This paper consists of section A, B and C with a total of 15 questions.
2.    Answer all questions in section A and B and TWO  (2) question from section C in which question 13 compulsory.
3.    All writing should be in blue or black pen, except for diagrams that must be drawn in pencil.
4.    Cellular phones and any unauthorized materials are not allowed in the examination room.
5.    Write your number on every page of your answer booklet.

 SECTION A (20 Marks)

 Answer All questions in this section.

(i)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.

SECTION B: 60 MARKS.

4. (a) Define the following terms.

1.                     Ecology
2.          Environment
3.       Community
4.         Ecosystem.

 (b) (i) State the difference between natural and artificial ecosystems

 (ii) Explain why food webs are more representative of feeding relationship than food chains.

5. (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.

6. (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.

7. (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.

8. (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

9. Describe five distinctive features of kingdom plantae

10.  a) Mention two members of division coniferophyta

     b) State the distinctive features of conifers

11.  a) Briefly explain how fertilization takes place in conifers

     b) Outline the advantages and disadvantages of confers

SECTION C:

12. 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.

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

  14.  a) What is alternation of generation?

     b)    Explain how alternation of generation takes place in bryophytes.

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

SECONDARY EXAMINATION SERIES

BIOLOGY 1 MID TERM EXAMINATION

FORM THREE-2021

Time: 3Hours

Instructions.

1. This paper consists of section A, B and C with a total of 15 questions.
2. Answer all questions in section A and B and TWO  (2) question from section C in which question 13 compulsory.
3. All writing should be in blue or black pen, except for diagrams that must be drawn in pencil.
4. Cellular phones and any unauthorized materials are not allowed in the examination room.
5. Write your number on every page of your answer booklet.

SECTION A (20 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 beside the item number in the answer booklet provided.

1. Which of the following are parasitic eukaryotic organisms?

1. Amoeba and paramecium
2. Euglena and green algae
3. Trypanosome and plasmodium
4. Brown algae and amoeba
5. Plasmodium and amoeba.

(ii) The outer most living structure in plant cells is the;

1. Cell wall
2. Cytoplasm
3. Cell membrane
4. Nuclear membrane
5. Ectoplasm.

(iii) The part of cassava plant which is modified for food storage is;

1. An underground stem
2. An underground root
3. A corn
4. A prop root
5. An underground stalk.

(iv) The human body can make one of the following vitamins for itself;

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

(v) Examples of diseases caused by bacteria are?

1. Tuberculosis, cholera and gonorrhea.
2. Malaria, bilharzias’ and cancer
3. Elephantiasis, AIDS and sleeping sickness.
4. Measles, amoebic dysentery and chickenpox
5. Common cold, Typhoid and cholera.

(vi) Which of the following is common to both plants and animals?

1. Respiration
2. Digestion
3. An excretory system
4. Chloroplasts.
5. Starch grains.

(vii) The Monera are also referred to as Prokaryotes. This means having;

1. No nucleus
2. Membrane bounded organelles
3. Simple structure.
4. Reduced nucleus.
5. Circular nucleus.

(viii) Food is moved along the oesophgus by a process known as:-

1. Assimilation
2. Chewing
3. Egestion
4. Peristalsis
5. Churning

(ix) Removal of predators in the ecosystem will result in;

1. Decrease in the number of producers
2. Increase in the number of producers
3. Decrease in the number of prey
4. An increase in the number of decomposers
5. No significant change.

(x) Which of the following best defines allergy?.

1. Body reaction to antigen
2. Body reaction against a specific drug.
3. Body reaction against a disease – causing micro – organism.
4. Accumulation of mucus caused by inhaling dust particles.
5. Formation of rash causes by eating specific foods.

2. Matching items questions.

SECTION B (60 Marks)

Answer All Questions in This section

3. (a) What is blood circulation?

(b) Give four importance of blood circulation

(c) Name two disorders of human circulatory system.

4. (a) What do you understand by term “Diffusion”?

(b) Name structures concerned with gaseous exchange in plants

(c) Explain mechanism of gaseous exchange in man.

5. (a) Outline four reasons for studying Biology in schools.

(b) Define Respiration

(c) Give five features of respiratory surfaces.

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

(b) Outline four qualities of a good laboratory

(c) Give functions of the following apparati.

1. Petri dish
2. Mortar and pestle
3. Hand lens
4. Thermometer.

7. (a) Define the term health.

(b) Mention four factors affecting health.

(b) Name causative agent of the following.

1. Common cold
2. Cholera
3. Dysentry
4. Bilharzia

8. (a) Give two differences between cell membrane and cell wall

(b) What is the importance of cell differentiation to an organism

9.(a) State the general characteristics of kingdom plantae

(b) Briefly explain the differences between monocots and dicots.

10. (a) What is movement?

(b) Describe the role played by skeleton in human body

11. Juma complains of a burning sensation around the chest region

(a) What do you think is his problem
(b) Give five measures he should take to treat the disorder

12. Waste from homes can have several beneficial uses. Elaborate.

SECTION C (25 marks) ESSAY QUESTION

Answer two questions from this section. Question 13 is compulsory.

13. Write an essay on typhoid using guidelines below.

1. Meaning
2. Cause
3. Symptoms
4. Effects
5. Prevention and control

14. Write an essay on waste disposal using the guidelines below.

1. Meaning of Waste
2. Meaning of Waste disposal
3. Types of Wastes
4. Ways of disposing wastes.
5. Effects of poor waste disposal

15. Viruses can be both harmful and beneficial, elaborate this statement.

THE PRESIDENT’S OFFICE

REGIONAL ADMINISTRATION AND LOCAL GOVERNMENT

MID TERM EXAMINATIONS- MARCH 2020

033/1                                                               BIOLOGY FORM THREE

Time: 3Hours                                                                                   

Instructions:

1. This paper consists of sections A, B and C with a total of fifteen (15) questions.
2. Answer all questions in sections A and B and two (2) question2 from section C of which question 13 is compulsory.
3. All writing should be in blue or black pen, except for diagrams that must be drawn in pencil.
4. Cellular phones and any unauthorized materials are not allowed in the examination room.
5. Write your Examination Number on every page of your answer booklet(s)

SECTION A 15 MARKS

1. Answer all questions this section writes your answers in the boxes provided.

1. A blood vessel that start from the ileum to the liver.

1. Mesenteric vein
2. Mesenteric artery
3. Hepatic artery
4. Hepatic portal vein
5. Hepatic vein.

1. Stores waste products after they have been recycled:-

1. Cartilage
2. Tendons
3. Bones
4. Seeds
5. muscles

1.  Kills bacterial (bad) in the stomach

1. Sulphurous acid
2. Sulphuric acid
3. Nitric acid
4. Nitric acid
5. Hydrochloric acid

1. Sensitive to strong light intensity

1. Cones
2. Rods
3. Optic nerve
4. Blind spot
5. Sclerotic layer

1. There is a lot of absorption of water but merely no digestion of food.

1. Ileum
2. Colon
3. Duodenum
4. Stomach
5. Rectum 

1. A semi – permeable membrane during osmosis allows the passage of:-

1. Only very small solute molecule
2. Little residue molecules 
3. Water molecules
4. Solute molecules
5. Much solute molecules.

1. The largest artery in the body of man is known as:-

1. Renal artery
2. Renal vein
3. Vena cava
4. Aorta
5. Pulmonary artery.

1. A set of micronutrients in plants.

1. Nitrogen, zinc and Iodine
2. Carbon, zinc and copper
3. Oxygen, carbon and zinc
4. Magnesium, carbon and zinc
5. Zinc, copper and iodine.

1. A set of smallest bones in the mammalian body:-

1. Vertebrae, carpals and digits
2. Hammer, anvil and stirrup
3. Vertebrae, tarsus and digits
4. Metacarpals, tarsus and vertebrae
5. Tarsus, carpals and metatarsals.

1. Breathing pores in the stem:-

1. Parenchyma
2. Alveoli
3. Lenticels
4. Stomata
5. Micropyle.

SECTION B (60 Marks)

3. In the Biology laboratory there are different apparatuses and equipment used for conducting experiments. Draw the apparatus used for;

1. Putting specimens for close observation
2. Grinding or crushing substances in the laboratory
3. Adding liquids during an experiment drop by drop
4. Scooping powder or crystalline substance.

4. (a) What is a dental formula?

    (b) Mention the name of the hardest part of a mammalian tooth and indicate clearly its function.

5. (a) Distinguish between artery and vein in terms of physical appearance.

    (b) Give a concrete reasons of your answer in Q5 (a) above as to why each is of that nature.

6. (a) Differentiate between good manners and personal Hygiene .

    (b) In each case, in Q 3(a) above supply two examples.

7. Write short notes to the following technical phrases.

1. Sexually transmitted diseases 
2. Sexually transmitted infections.
3. Differences between infections and diseases
4. Symbiotic Nitrogen fixers
5. Specific examples of symbiotic Nitrogen fixers

8. (a) Tell the adaptation of the Skelton (4 of them)

9. ____________________________________________________________________________________________________________________________________
10. __________________________________________________________________

__________________________________________________________________

1. ____________________________________________________________________________________________________________________________________
2. ____________________________________________________________________________________________________________________________________

 (b)Draw and label correctly the hind limb of a mammal

9. (a) What is 

9. Respiration
10. Oxygen dept

b) Write balanced symbol equation for;

i) Aerobic respiration

ii) Anaerobic respiration in yeast and plant tissue

10.  How does monocotyledon differ from dicotyledonous plants?

11.  Ringing in plants involves removal of the bark of tree. This hinders communication between upper and lower parts of plant. In three points, briefly elaborate the impact of ringing on the stem of hibiscus plant.

12.  (a) Give two differences between cell membrane and cell wall.

      (b) Why is cell differentiation important to living organisms? Give a reason.

SECTION C 25 Marks

Answer only one question from this section.

13. Write down and essay entitled “reproduction in flowering plants” – using the following guidelines:-

• Definition of pollination
• Four agents of pollination
• Changes that take place inside a flower after effective pollination till when a viable seed or fruit is formed.

14. Majority of people believe that all fungi are harmful organisms. As a biologist, explain four ways in which fungi are beneficial to human being.

15. Write down an Essay on “Excretion in Plants” using the following guidelines:-

• Why excretory products in plants are recycled inside the particular plant.
• Products formed after recycling 
• The role of leaves during excretion
• How seed and fruits become excretory organs besides reproduction.