7. Human nutrition
A section of Biology, 0610
Listing 10 of 505 questions
shows the proportion of different food groups in a diet. carbohydrates fats vitamins, minerals and fibre proteins State the two food groups, shown in , that supply the most energy per kilogram. and This diet has a low proportion of iron and vitamin D. Describe one effect of a shortage of iron in the human diet. Describe one effect of a shortage of vitamin D in the human diet. shows how much energy is required, each day, by different people. energy requirement / × 1000 kJ per day young child teenage girl teenage boy farm worker hospital patient male office worker female office worker elderly person person Use . to suggest two factors which affect the energy requirements of a person. Explain why a female office worker with a daily intake of 15 000 kJ is likely to become overweight. In many parts of the world, rice forms an important part of the diet. Rice contains a high proportion of starch. Egg, chicken or fish may be added to the rice. State why undigested starch cannot be used by the body. If food containing a lot of starch is chewed for a long time, it may leave a sweet taste in the mouth. Explain why this happens. Suggest the benefit of adding egg, chicken or fish to the rice. Rice is not the only food that contains a lot of starch. Name two other foods that contain a lot of starch. Rice is usually boiled, but it can also be cooked in fat. There may be harmful effects to the body of eating too much fatty food. Describe two ways in which too much fat in the diet may be harmful to the body.
0610_s14_qp_22
THEORY
2014
Paper 2, Variant 2
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Table 9.1 contains examples of components of a balanced diet and foods that contain a high proportion of the component. Complete Table 9.1 by filling in the blank spaces. Table 9.1 component of balanced diet food containing a high proportion of the component fat olive oil meat pasta fibre Name two other components of a balanced diet that are not listed in Table 9.1. shows a picture of food production on a modern farm. The use of modern technology has increased the amount of food produced. State two examples of modern technology and explain how each has contributed to the amount of plants grown for food. example explanation of technology On modern farms crop plants can be grown as large-scale monocultures. Suggest two negative impacts on an ecosystem for this method of food production.
0610_s16_qp_31
THEORY
2016
Paper 3, Variant 1
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State what is meant by the term balanced diet. shows a pie chart of a person’s diet. 36% 12.5% 35% 11% 5.5% fruit and vegetables meat, fish, eggs and beans foods and drinks high in fat and sugar milk and dairy foods bread, rice, potatoes and pasta Bread, rice, potatoes and pasta form 36% of this diet. Explain why these foods are important to the body. State the foods shown in that are rich in protein and state why proteins are important to the body. Only 5.5% of this diet is made up of food and drinks that are high in fat and sugar. Describe one harmful effect of eating too much fat. The diet in would not be suitable for everyone’s needs. State and explain two factors that could affect a person’s dietary needs.
0610_s16_qp_33
THEORY
2016
Paper 3, Variant 3
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A balanced diet is required to ensure healthy weight gain as children grow. Explain the term balanced diet. A doctor diagnosed a young child with marasmus. Describe the symptoms of marasmus. The child with marasmus was put on a special diet. He was given fortified milk, which is milk that has extra nutrients added to it. The child was encouraged to drink as much fortified milk as he wanted over a period of seven months. Table 4.1 shows the composition of the fortified milk given to the child and the composition of cow’s milk for comparison. Table 4.1 type of milk milk composition percentage of protein percentage of carbohydrate percentage of fat energy / kJ dm–3 fortified milk 16.5 57.0 17.0 cow’s milk 3.3 4.6 3.9 The body mass of the child who had marasmus and the mean body mass of healthy children of the same age were recorded. The data is shown in . body mass / kg time / months marasmus Key healthy Using the information in Table 4.1 and , describe and explain the importance of diet when treating children affected by marasmus. It is important that children with marasmus produce enough bile. Describe the role of bile in the digestion of fats.
0610_s17_qp_42
THEORY
2017
Paper 4, Variant 2
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Questions Discovered
505