0610_s11_qp_21
A paper of Biology, 0610
Questions:
9
Year:
2011
Paper:
2
Variant:
1
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1
For Examiner's Use shows six members of the cat family, Felidae. A B C D E F For Examiner's Use Use the key to identify the cats, A to F, shown in . Tick () the boxes in Table 1.1 to show how you identify each cat. Write the name of each cat in the correct box in Table 1.1. Cat A has been completed for you as an example. Key name of cat 1 Ears pointed Ears rounded 2 Fur with no stripes or spots Fur with stripes or spots 3 Fur with stripes, but no spots Fur with spots 4 Fur with spots, but no stripes Fur with spots and stripes 5 Fur with spots Fur with no spots go to 5 go to 2 P. leo go to 3 P. tigris go to 4 A. jubatus N. nebulosa L. rufus L. caracal Table 1.1 cat name of cat A ✓ ✓ L. caracal B …………………………………. C ……………………………… D ……………………………….… E ……………………………….… F …………………………………
17. Inheritance  →  17.4. Monohybrid inheritance
1. Characteristics and classification of living organisms  →  1.3. Features of organisms
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2
For Examiner's Use State what is meant by the term balanced diet. Balanced diets should include fat, fibre, mineral salts and vitamins. Name two other types of nutrients that should be present in a balanced diet. Suggest and explain the effects on a person of a diet with: too little fibre, too much animal fat. For Examiner's Use Calcium, a mineral salt, is needed in the diet. Explain the role of calcium in the body and the effect of calcium deficiency.
7. Human nutrition  →  7.1. Diet
9. Transport in animals  →  9.2. Heart
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3
For Examiner's Use shows a section through parts of the male reproductive and urinary systems. M N O Name the tubes labelled M, N and O. M N O Explain the roles of the testes, the prostate gland and the scrotum. testes prostate gland scrotum For Examiner's Use Humans use a variety of methods of birth control. On , put an X where a vasectomy could be carried out. Put your answer on . Explain one method of birth control, used by males, that can also protect against infection by a sexually transmitted disease. Name one sexually transmitted disease.
16. Reproduction  →  16.4. Sexual reproduction in humans
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5
For Examiner's Use The nuclei of cells divide by two different processes, mitosis and meiosis. Name one organ in humans where meiosis takes place. Name one organ in a flower where meiosis takes place. Complete Table 5.1 to show three differences between mitosis and meiosis. Table 5.1 differences mitosis meiosis .….………………………………… .….………………………………… .….………………………………… .….………………………………… .….………………………………… .….………………………………… .….………………………………… .….………………………………… .….………………………………… .….………………………………… .….………………………………… .….………………………………… For Examiner's Use During the division of a nucleus, a mutation may happen. Define the term mutation. State two environmental factors that may increase the rate at which mutations happen. 1. 2.
17. Inheritance  →  17.2. Mitosis
17. Inheritance  →  17.3. Meiosis
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6
For Examiner's Use shows the flow of some of the energy through a food chain in an ocean. secondary consumers 1000 kJ primary consumers 8000 kJ phytoplankton 100 000 kJ respiration 80 000 kJ decomposers ? kJ About 1% of the light energy reaching the ocean is converted to chemical energy by the phytoplankton. The phytoplankton produce sugars, fats and proteins. Name the process that changes light energy to chemical energy. Name the chemical in the phytoplankton that absorbs light energy. Calculate, using information from , how much energy passes from the phytoplankton to the decomposers. Show your working in the space below. answer kJ Name two groups of decomposers. 1. 2. Calculate, using information from , the percentage of energy passed from the phytoplankton to the primary consumers. Show your working in the space below. answer % For Examiner's Use About 88% of the energy in the primary consumers does not become part of the secondary consumers. Explain how this energy is lost from the food chain. The organisms in this food chain form a community in the ocean. This community is formed of many populations. Explain what is meant by the term population.
19. Organisms and their environment  →  19.2. Food chains and food webs
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7
For Examiner's Use shows a carbon cycle. carbon dioxide in the air carbohydrates and proteins in green plants carbon compounds in fossil fuels, eg oil and coal carbohydrates and proteins in animals carbohydrates and proteins in dead organic matter death death death death death death The arrows on represent processes that occur in the cycle. Place a letter next to an arrow that represents each of the following processes. Decomposition – D Put your answer on . Photosynthesis – P Put your answer on . Respiration – R Put your answer on . The concentration of carbon dioxide in the air has been rising since the middle of the 19th century. Suggest reasons why this has happened.
19. Organisms and their environment  →  19.3. Nutrient cycles
20. Human influences on ecosystems  →  20.3. Pollution
6. Plant nutrition  →  6.1. Photosynthesis
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8
For Examiner's Use shows a section through the heart. Q P R S Name the two blood vessels, shown on , that carry oxygenated blood. State the letter that identifies the tricuspid valve. State a letter that identifies a semilunar valve. Describe how the heart forces blood into the aorta. For Examiner's Use Name the blood vessel that delivers blood to the muscles of the walls of the atria and ventricles. Name the two blood vessels that deliver blood to the liver. 1. 2.
9. Transport in animals  →  9.3. Blood vessels
9. Transport in animals  →  9.2. Heart
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