0610_s17_qp_32
A paper of Biology, 0610
Questions:
8
Year:
2017
Paper:
3
Variant:
2
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1
shows five whole leaves from different trees. A B D not to scale E C Use the key to identify the leaves in and write the answers in Table 1.1. Table 1.1 key name of tree letter leaf is a single leaf shape go to 2 leaf is divided into several parts called leaflets go to 4 veins branch from a long middle vein go to 3 veins branch from a single point at the stalk Hedera leaf is oval and has a smooth edge Magnolia leaf is not oval and has a lobed edge Quercus leaf has leaflets joined at one point on the stalk Aesculus leaf has leaflets joined at different points along the stalk Sorbus
6. Plant nutrition  →  6.2. Leaf structure
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2
is a diagram of the alimentary canal. A B C D E F G H J K L Table 2.1 shows some of the processes that occur in the alimentary canal. Use the letters in to identify where the processes occur. Write your answers in Table 2.1. Table 2.1 process letter ingestion mechanical digestion secretion of protease absorption of nutrients egestion Chemical digestion is the breakdown of large, insoluble molecules into smaller, soluble molecules. Digestive enzymes such as lipase are used in this process. Define the term enzyme. The enzyme lipase breaks down fats. State the end products of fat digestion. List the three chemical elements that are found in fats. Fat is an important component of a balanced diet. Draw circles around two foods that are a good source of fat. beans butter pasta oranges rice olive oil State the names of three components of a balanced diet, other than fat. State one use in the body of fat.
7. Human nutrition  →  7.4. Chemical digestion
7. Human nutrition  →  7.3. Physical digestion
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3
Hormones are chemical substances produced by glands. The column on the left shows the names of some hormones. The column on the right shows the names of some glands. Draw one straight line from the hormone to the gland that secretes it. Draw four lines. testosterone ovary hormone gland oestrogen adrenal pancreas adrenaline insulin salivary testes State the function of the hormone insulin. Ovaries are part of the female reproductive system. Ovaries secrete hormones and also release the female gamete. Name the female gamete. State two adaptive features of sperm. Name the type of cell division that produces gametes. Adrenaline is the hormone that is released in ‘fight or flight’ situations. Describe two effects that adrenaline has on the body. Table 3.1 shows a list of activities. Tick the boxes that would result in a release of adrenaline. Table 3.1 bungee jumping sitting an exam going for a gentle walk reading a textbook drinking water hearing a sudden noise painting a picture
14. Coordination and response  →  14.3. Hormones
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4
Use words from the list to complete the definition of anaerobic respiration. Each word may be used once, more than once or not at all. carbon dioxide cells chemical chloroplasts energy nucleus nutrient oxygen physical The reactions in that break down molecules to release energy without using . 100 g of glucose releases 1600 kJ of energy during aerobic respiration. The energy released during anaerobic respiration is only 5% of the energy released during aerobic respiration. Calculate the energy released from 100 g of glucose during anaerobic respiration. Show your working. kJ State two substances made by aerobic respiration. State three uses of the energy released by respiration in the body. State one way anaerobic respiration in muscles during vigorous exercise differs from the anaerobic respiration that occurs in yeast. State one industrial process that uses anaerobic respiration in yeast.
12. Respiration  →  12.3. Anaerobic respiration
12. Respiration  →  12.2. Aerobic respiration
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5
shows a diagram of part of the human circulatory system. lungs heart body On label the: • pulmonary artery • pulmonary vein. State two ways the structure of a vein differs from the structure of an artery. Table 5.1 shows the components of the blood. Complete Table 5.1 to show the functions of these components. Table 5.1 component of blood function red blood cells white blood cells platelets plasma
9. Transport in animals  →  9.4. Blood
9. Transport in animals  →  9.3. Blood vessels
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6
is a drawing of a seed that has germinated. surface of soil shoot root seed Draw two arrows on to show the direction of growth for the root and shoot. Name the type of growth response that would be shown by the root in . shows the apparatus set up by a student to investigate the germination of seeds. A B C D kept at 21 °C seeds wet cotton wool seeds dry cotton wool oil seeds water seeds wet cotton wool kept at 5 °C The seeds in test-tube A were the only ones which germinated. Explain why the seeds in test-tubes B, C and D did not germinate. B C D After the seeds have germinated they will absorb mineral ions. Plants need mineral ions for healthy growth. Complete Table 6.1 to show the function of nitrate and magnesium ions in a plant. Table 6.1 mineral ion function in plants nitrate magnesium State where the mineral ions enter a plant.
6. Plant nutrition  →  6.1. Photosynthesis
16. Reproduction  →  16.3. Sexual reproduction in plants
8. Transport in plants  →  8.2. Water uptake
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7
shows a photograph of Ursus maritimus (polar bear). Polar bears live in and around the Arctic Circle, surviving in extremely cold conditions. Describe and explain one visible adaptive feature that enables the polar bear to survive in a cold environment. feature explanation Polar bears have adapted over time to live in the cold arctic environment through a process called natural selection. Describe the process of natural selection. Polar bears are an endangered species. Suggest reasons why polar bears have become endangered and how they could be conserved.
18. Variation and selection  →  18.3. Selection
18. Variation and selection  →  18.2. Adaptive features
20. Human influences on ecosystems  →  20.4. Conservation
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8
is a graph that shows the percentage of males and females in different age groups that smoke cigarettes every day. 12–15 16–17 18–19 20–34 35–44 age group in years 45–54 55–64 65+ percentage of people who smoke every day male female Use to answer these questions. State the age group and gender that is most likely to smoke cigarettes every day. State the percentage of 55–64 year old females who smoke cigarettes every day. % Table 8.1 shows the components of cigarette smoke. Complete Table 8.1 to show the effects of the components of cigarette smoke on the body. Table 8.1 component in cigarette smoke effect on the body carbon monoxide tar nicotine Smoking is one of the risk factors that contributes to coronary heart disease. State two other risk factors.
9. Transport in animals  →  9.2. Heart
11. Gas exchange in humans  →  11.1. Gas exchange in humans
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