0610_s17_qp_31
A paper of Biology, 0610
Questions:
9
Year:
2017
Paper:
3
Variant:
1
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2
The boxes on the left contain the names of parts of the body that produce hormones. The boxes in the centre contain the names of hormones. The boxes on the right contain functions of these hormones. Draw one straight line to link each hormone to the part of the body where it is produced. Draw one straight line to link each hormone to its function. part of the body hormone function adrenal gland adrenaline lowers blood sugar level ovary insulin increases rate of breathing pancreas oestrogen causes growth of hairs on chest testis testosterone causes breast development State how hormones are transported round the body.
14. Coordination and response  →  14.3. Hormones
16. Reproduction  →  16.5. Sex hormones in humans
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3
shows the blood flow to certain parts of the body of a student who is sitting down. alimentary canal heart muscle skeletal muscles skin blood flow / dm3 per min Use to state the blood flow to the skeletal muscles in the student when he is sitting down. State the name of two organs in the body whose blood flow is not shown on the graph. Use the information from and to calculate the percentage increase in the blood flow to the skeletal muscles when the student exercises. Show your working. % During exercise the muscles need more energy. Name two chemicals the muscles absorb from the blood to release energy for contraction. Explain why blood flow to the heart muscle increases when the person exercises. and show that during exercise the blood flow to the alimentary canal and the blood flow to the skin change. Describe the changes in blood flow that occur in the alimentary canal and the skin during exercise. alimentary canal skin Suggest a reason for the change in blood flow to the alimentary canal during exercise. Explain why the blood flow to the skin changes during exercise.
11. Gas exchange in humans  →  11.1. Gas exchange in humans
9. Transport in animals  →  9.2. Heart
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5
An adaptive feature helps an organism survive in its environment. Adaptive features are inherited. contains diagrams of three animals. For each animal, select one adaptive feature visible in and briefly suggest how it helps the animal to survive. An example has been done for you. not drawn to scale animal C red deer adaptive feature: antlers on head help in survival: used for defence against predators animal D saltwater crocodile adaptive feature: help in survival: shows a giraffe and an okapi. The long neck is an adaptive feature for giraffes. It helps them feed on leaves that other animals like the okapi cannot reach. Giraffes developed long necks by the process of natural selection.
18. Variation and selection  →  18.2. Adaptive features
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6
shows a section of a bronchiole from the lungs of a person who never smoked cigarettes (non-smoker) and a section of a bronchiole from a person who smoked cigarettes for several years . The two sections were taken from the same relative position in the lungs and are drawn to the same scale. muscle cells cilia air space mucus with dust and bacteria goblet cell goblet cell non-smoker smoker Table 6.1 gives a comparison between the bronchiole of a non-smoker and a smoker. Use to complete Table 6.1. An example has been done for you. Table 6.1 feature bronchiole of non-smoker bronchiole of smoker length of cilia number of cilia size of air space wide narrow mucus layer Identify two other ways in which the bronchiole in a non-smoker is different from the bronchiole in a smoker. A person who smokes has a higher risk of lung infections than a person who does not smoke. Use evidence from to explain why the smoker has a higher risk of lung infections than a non-smoker. State the name of two substances in tobacco smoke that are harmful.
11. Gas exchange in humans  →  11.1. Gas exchange in humans
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7
shows six leaves. G H J K L M not drawn to scale Use the key to identify the plants that these leaves came from. Write the letter for each leaf in the key. Key description name of organism letter 1 veins parallel go to 2 veins not parallel go to 3 2 leaf length more than six times leaf width at its widest point Plantago maritima leaf length less than six times leaf width at its widest point Plantago lanceolata 3 leaf has thorns Ilex aquifolium leaf has no thorns go to 4 4 leaf not divided into sections Nymphaea alba leaf divided into sections go to 5 5 leaf divided into 3 sections Trifolium pratense leaf divided into 8 sections Lupinus arboreus
6. Plant nutrition  →  6.2. Leaf structure
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8
Define the term chemical digestion. shows a diagram of the alimentary canal. N P R S T U V W X Identify the structures in and use the letters to complete Table 8.1. An example has been done for you. Table 8.1 name of structure letter from salivary gland P anus large intestine mouth pancreas stomach State one function of the liver and one function of the small intestine. function of the liver function of the small intestine Describe how the protein in food is digested in the alimentary canal. The condition where watery faeces are lost from the body is called diarrhoea. Outline one way in which diarrhoea can be treated.
7. Human nutrition  →  7.2. Digestive system
7. Human nutrition  →  7.3. Physical digestion
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9
shows a photomicrograph of a section through a leaf. X Y Z magnification ×300 State the name of the layers of the leaf labelled X and Y in . X Y The cells in layer X are transparent. Suggest a reason for this. State the name of the structure labelled Z in . State the name of the process by which gases move into and out of Z. Complete Table 9.1 by placing one tick in each row to show the net movement of gases through Z on a hot, dry, sunny day. Table 9.1 net movement of gas name of gas into leaf out of leaf no movement carbon dioxide oxygen water vapour State two substances that are made during photosynthesis. State the name of the green pigment needed for photosynthesis.
6. Plant nutrition  →  6.1. Photosynthesis
6. Plant nutrition  →  6.2. Leaf structure
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