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1

The diagram shows some liver cells as they appear under the microscope. How many cell walls can be seen?

2. Organisation of the organism  →  2.1. Cell structure

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2

Which row shows the most likely number of chloroplasts in three types of cell in a leaf?

6. Plant nutrition  →  6.2. Leaf structure

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3

Which row shows the structures present in plant and animal cells?

2. Organisation of the organism  →  2.1. Cell structure

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4

Which structure is at a different level of organisation from the other three?

13. Excretion in humans  →  13.1. Excretion in humans

14. Coordination and response  →  14.2. Sense organs

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5

What is defined as the chemical reactions that break down food molecules in cells to release energy?

12. Respiration  →  12.3. Anaerobic respiration

12. Respiration  →  12.2. Aerobic respiration

7. Human nutrition  →  7.4. Chemical digestion

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6

The diagram shows a section through a flower. petal Using the key, identify this flower. sepals present go to 2 sepals absent go to 3 stamens attached to petals A stamens not attached to petals B stigma above anthers C stigma below anthers D

16. Reproduction  →  16.3. Sexual reproduction in plants

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7

Which diagram shows one organ only?

14. Coordination and response  →  14.2. Sense organs

7. Human nutrition  →  7.2. Digestive system

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8

The diagram shows an arthropod animal. Which features are characteristic of all arthropods?

1. Characteristics and classification of living organisms  →  1.3. Features of organisms

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9

Which solutions are used for testing for protein, reducing sugar and starch?

4. Biological molecules  →  4.1. Biological molecules

7. Human nutrition  →  7.4. Chemical digestion

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10

On a dry, sunny day, how does water vapour move through the stomata of a leaf?

8. Transport in plants  →  8.3. Transpiration

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11

The diagram shows an experiment using a potato. concentrated sugar solution fresh potato water Which shows the result of the experiment after 24 hours?

3. Movement into and out of cells  →  3.2. Osmosis

4. Biological molecules  →  4.1. Biological molecules

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12

A protease is added to a suspension of egg protein in a test-tube and kept at 37 °C. After 8 minutes, the protein changes from cloudy to transparent. Which product, or products, will now be present in the test-tube?

7. Human nutrition  →  7.4. Chemical digestion

4. Biological molecules  →  4.1. Biological molecules

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13

Which condition can sometimes be prevented by eating plenty of fresh fruit and vegetables?

7. Human nutrition  →  7.1. Diet

14. Coordination and response  →  14.4. Homeostasis

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14

The graph shows how the rate of an enzyme-controlled reaction changes with temperature. rate of reaction temperature X What is happening within the temperature range marked X?

5. Enzymes  →  5.1. Enzymes

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15

The diagram shows the stem of a plant. A strip of the outer tissue including the phloem has been removed. xylem phloem How is transport in the plant affected?

8. Transport in plants  →  8.4. Translocation

8. Transport in plants  →  8.1. Xylem and phloem

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16

The table shows some of the features of respiration. Which row is correct for anaerobic respiration?

12. Respiration  →  12.3. Anaerobic respiration

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17

Four words are shown...

21. Biotechnology and genetic modification  →  21.2. Biotechnology

12. Respiration  →  12.3. Anaerobic respiration

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18

The photograph shows human blood cells as seen under a microscope at high power. Q P S R Which are red cells?

9. Transport in animals  →  9.4. Blood

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19

The diagram shows someone blowing up a balloon. What percentage of the gas in the balloon is carbon dioxide?

11. Gas exchange in humans  →  11.1. Gas exchange in humans

13. Excretion in humans  →  13.1. Excretion in humans

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20

What is a description of transpiration?

8. Transport in plants  →  8.3. Transpiration

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21

What happens when the body temperature rises above normal?

14. Coordination and response  →  14.4. Homeostasis

9. Transport in animals  →  9.3. Blood vessels

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22

The diagram shows some of the muscles and bones of the human arm. muscle Y muscle X elbow joint When muscle X contracts, what happens to the arm and what happens to muscle Y?

9. Transport in animals  →  9.2. Heart

11. Gas exchange in humans  →  11.1. Gas exchange in humans

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23

The diagram shows a section through part of the human eye. suspensory ligaments lens When a person looks at an object which is close to their eye, which of the following takes place?

14. Coordination and response  →  14.2. Sense organs

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24

Which organ produces urea?

13. Excretion in humans  →  13.1. Excretion in humans

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25

What term is used for the transference of a gene from one organism to another?

18. Variation and selection  →  18.3. Selection

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26

The diagram shows the female reproductive system. X What is the function of the part labelled X?

16. Reproduction  →  16.4. Sexual reproduction in humans

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27

The diagram shows some of the stages in the germination of a seed. The figures show the total mass at each stage. stage mass / g 0.6 4.7 5.9 Which process causes the increase in mass between stage 1 and stage 2?

16. Reproduction  →  16.3. Sexual reproduction in plants

6. Plant nutrition  →  6.1. Photosynthesis

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28

The diagram shows the changes which take place during a woman’s menstrual cycle. time / weeks time / weeks oestrogen progesterone menstruation uterus wall What is occurring at the time of ovulation?

16. Reproduction  →  16.5. Sex hormones in humans

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29

The graph shows how dry mass of a plant changes with time. Where on the graph is growth occurring?

19. Organisms and their environment  →  19.4. Populations

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30

The diagram shows part of the carbon cycle. carbon dioxide in the air carbohydrates in living plants dead matter carbohydrates in living animals Y Which process occurs at Y?

6. Plant nutrition  →  6.1. Photosynthesis

19. Organisms and their environment  →  19.3. Nutrient cycles

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31

What makes nuclear fall-out dangerous to living organisms?

20. Human influences on ecosystems  →  20.4. Conservation

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32

The diagram shows part of the water cycle. Where is osmosis occurring?

3. Movement into and out of cells  →  3.2. Osmosis

8. Transport in plants  →  8.3. Transpiration

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33

The family tree shows the inheritance of the ability to taste a certain substance. The allele for the ability to taste this substance is dominant to the allele for the inability to taste it. David 1st generation 2nd generation 3rd generation Mary represents a male ‘taster’ represents a female ‘taster’ represents a male ‘non-taster’ represents a female ‘non-taster’ key Peter Hannah ?

17. Inheritance  →  17.4. Monohybrid inheritance

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34

The diagram shows the flow of energy in a food chain. Which organism is the producer in the food chain?

19. Organisms and their environment  →  19.2. Food chains and food webs

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35

A very large area of land has been cleared of rainforest and planted with soybean. What result of deforestation will encourage the growth of the soybean plants?

20. Human influences on ecosystems  →  20.2. Habitat destruction

20. Human influences on ecosystems  →  20.1. Food supply

14. Coordination and response  →  14.5. Tropic responses

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36

The diagram shows part of a section through a leaf. The arrow represents part of the A carbon cycle only. B flow of energy. C water and carbon cycles. D water cycle only.

6. Plant nutrition  →  6.2. Leaf structure

19. Organisms and their environment  →  19.3. Nutrient cycles

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37

The diagram shows a food web. producer Which organisms occupy the same trophic level?

19. Organisms and their environment  →  19.2. Food chains and food webs

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38

The map shows a river flowing into the sea. The river is polluted by untreated sewage. At which labelled point will the oxygen content of the water be lowest?

20. Human influences on ecosystems  →  20.3. Pollution

10. Diseases and immunity  →  10.1. Diseases and immunity

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39

The size of the arrows shows the approximate, relative amounts of energy passing from one stage to the next in a food chain. Which chain represents the energy losses between trophic levels?

19. Organisms and their environment  →  19.2. Food chains and food webs

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40

The diagrams show the current population sizes for people below 50 years of age in four different countries. Which country will be likely to have the largest population of people 60 – 70 years of age in 20 years time?

19. Organisms and their environment  →  19.4. Populations

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