The blood component responsible for clotting is: A. Erythrocytes B. Leucocytes C. Thrombocytes D. Plasma E. Haemoglobin

The part of a plant responsible for anchoring and water absorption is: A. Stem B. Leaf C. Root D. Flower E. Fruit

The following are matching items. Match the phrase or term in List A with that in List B by writing its letter in the spaces provided in the table at the end of the question. LIST A (i) Organelle that produces energy (ii) Disease caused by lack of vitamin C (iii) Structure for locomotion in Euglena (iv) Carries deoxygenated blood to the lungs (v) Process of breaking down glucose to release energy (vi) Deficiency disease due to lack of protein (vii) Enzyme that digests fats (viii) Increases surface area for water absorption in plants (ix) Organism that causes tuberculosis (x) Gas produced during photosynthesis LIST B A. Mitochondrion B. Scurvy C. Flagellum D. Pulmonary artery E. Respiration F. Kwashiorkor G. Lipase H. Root hair I. Mycobacterium J. Oxygen Answers: LIST A i ii iii iv v vi viii ix x LIST B

1. Organelle that produces energy (1 alama)
2. Disease caused by lack of vitamin C (1 alama)
3. Structure for locomotion in Euglena (1 alama)
4. Carries deoxygenated blood to the lungs (1 alama)
5. Process of breaking down glucose to release energy (1 alama)
6. Deficiency disease due to lack of protein (1 alama)
7. Enzyme that digests fats (1 alama)
8. Increases surface area for water absorption in plants (1 alama)
9. Organism that causes tuberculosis (1 alama)
10. Gas produced during photosynthesis (1 alama)

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(a) Define the term "diffusion". (b) List three factors that affect the rate of diffusion. (i) (ii) (iii) (c) Give one example of diffusion in living organisms.

1. Define the term "diffusion". (4 alama)
2. List three factors that affect the rate of diffusion. (3 alama)
3. Give one example of diffusion in living organisms. (3 alama)

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(a) What is meant by the term "photosynthesis"? (b) Write the word equation for photosynthesis. (c) Name two factors that affect the rate of photosynthesis.

1. All viruses are harmful to living organisms. (1 alama)
2. What is meant by the term "photosynthesis"? (4 alama)
3. Write the word equation for photosynthesis. (3 alama)
4. Name two factors that affect the rate of photosynthesis. (3 alama)

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(a) Draw a labelled diagram of the human heart showing the four chambers and major blood vessels. (b) State two differences between arteries and veins.

1. The small intestine is the main site for digestion and absorption of nutrients. (1 alama)
2. Draw a labelled diagram of the human heart showing the four chambers and major blood vessels. (6 alama)
3. State two differences between arteries and veins. (4 alama)

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(a) Define the term "classification". (b) List three reasons why classification of living organisms is important. (i) (ii) (iii) (c) Name one organism from each of the following kingdoms: (i) Monera: (ii) Protista:

1. Ferns belong to the Kingdom Plantae. (1 alama)
2. Define the term "classification". (4 alama)
3. List three reasons why classification of living organisms is important. (3 alama)
4. Name one organism from each of the following kingdoms: (3 alama)

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What is meant by the term "First Aid"?

1. The heart pumps blood to the lungs through the pulmonary vein. (1 alama)
2. What is meant by the term "First Aid"? (2 alama)
3. Outline three steps to provide First Aid to a victim of a snake bite. (6 alama)
4. Name two items in a First Aid kit used for wound care. (2 alama)

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The following statements are either TRUE or FALSE. In the spaces provided write TRUE if the statement is correct and FALSE if the statement is not correct. (vii) The cell membrane is fully permeable to all substances. …………………

1. The cell membrane is fully permeable to all substances. (1 alama)

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The following statements are either TRUE or FALSE. In the spaces provided write TRUE if the statement is correct and FALSE if the statement is not correct. (viii) Bryophytes have true roots and stems. …………………

1. Bryophytes have true roots and stems. (1 alama)

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The following statements are either TRUE or FALSE. In the spaces provided write TRUE if the statement is correct and FALSE if the statement is not correct. (ix) Blood group AB is a universal donor. …………………

1. Blood group AB is a universal donor. (1 alama)

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The following statements are either TRUE or FALSE. In the spaces provided write TRUE if the statement is correct and FALSE if the statement is not correct. (x) The process of transpiration occurs mainly through stomata. …………………

1. The process of transpiration occurs mainly through stomata. (1 alama)

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Write an essay on malaria using the following guidelines: • Causative agent • Modes of transmission • Symptoms • Effects on the body • Prevention and control measures

1. Enzymes are proteins that speed up chemical reactions. (1 alama)
2. Write an essay on malaria using the following guidelines: • Causative agent • Modes of transmission • Symptoms • Effects on the body • Prevention and control measures (20 alama)

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Write an essay on the importance of enzymes in living organisms using the following guidelines: • Definition of enzymes • Role of enzymes in digestion • Role of enzymes in metabolism • Factors affecting enzyme activity

1. Malaria is caused by a virus. (1 alama)
2. Write an essay on the importance of enzymes in living organisms using the following guidelines: • Definition of enzymes • Role of enzymes in digestion • Role of enzymes in metabolism • Factors affecting enzyme activity (20 alama)

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