Which of the following is a characteristic of living organisms? A) They do not excrete waste products B) They do not reproduce C) They respond to stimuli D) They do not respire

The process by which plants make their own food is called: A) Respiration B) Transpiration C) Photosynthesis D) Absorption

Which part of the cell controls its activities? A) Cell wall B) Nucleus C) Cytoplasm D) Cell membrane

The blood vessel that carries blood away from the heart is called: A) Vein B) Artery C) Capillary D) Vena cava

The process of water loss from plants in the form of vapor is called:

The diagram shows a food chain. Grass → Grasshopper → Frog → Snake → Eagle (a) Identify the producer in this food chain. (b) Identify the secondary consumer in this food chain. (c) What would happen to the grasshopper population if the frog population decreased significantly?

1. Briefly explain by giving five points how gaseous exchange occurs across the alveolus. (5 mk)
2. (1 mk)
3. Identify the producer in this food chain. (1 mk)
4. Identify the secondary consumer in this food chain. (1 mk)
5. (1 mk)
6. (1 mk)
7. What would happen to the grasshopper population if the frog population decreased significantly? (1 mk)
8. (1 mk)
9. (1 mk)

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Name the following: (a) The liquid part of blood that carries blood cells, nutrients, and waste products. (b) The type of blood cell that fights infection. (c) The process by which nutrients are absorbed from the small intestine into the bloodstream.

1. The liquid part of blood that carries blood cells, nutrients, and waste products. (1 mk)
2. The type of blood cell that fights infection. (1 mk)
3. The process by which nutrients are absorbed from the small intestine into the bloodstream. (1 mk)

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Describe the functions of the following: (a) Lungs (b) Kidneys (c) Skin

1. (0 mk)
2. Amoeba (2 mk)
3. Classify the organisms given in the table up to Phylum level. (4 mk)
4. Lungs (1 mk)
5. Kidneys (1 mk)
6. Mushroom (2 mk)
7. Skin (1 mk)
8. Mushroom (2 mk)
9. Provide one disadvantage of Mushroom. (1 mk)
10. Human being (2 mk)

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Explain the importance of: (a) Water to living organisms. (b) Sunlight to plants.

1. Identify the structure labeled A. (1 mk)
2. Explain the importance of water to living organisms. (2 mk)
3. Identify the structure labeled B. (1 mk)
4. Explain the importance of sunlight to plants. (2 mk)
5. How many vascular bundles are present in the given diagram? (1 mk)
6. State the type of root shown. (1 mk)
7. Mention one characteristic of the vascular bundles in this type of root. (1 mk)

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Describe the process of digestion of carbohydrates in humans.

1. Describe the process of digestion of carbohydrates in humans. (3 mk)

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Explain how pollination occurs in flowering plants, mentioning two agents of pollination.

1. Explain how pollination occurs in flowering plants, mentioning two agents of pollination. (3 mk)

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The diagram shows a section of a leaf. (a) Identify the structures labelled A and B. (b) Explain the role of structure A in photosynthesis. (c) What gas is released during photosynthesis?

1. Identify the structures labelled A and B. (1 mk)
2. Explain the role of structure A in photosynthesis. (2 mk)
3. What gas is released during photosynthesis? (1 mk)

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Describe the process of respiration in humans, distinguishing between aerobic and anaerobic respiration.

1. Describe the process of respiration in humans, distinguishing between aerobic and anaerobic respiration. (5 mk)

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Explain the importance of biodiversity for an ecosystem.

1. Explain the importance of biodiversity for an ecosystem. (3 mk)

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