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1

Which two structures are found in all plant epidermal cells?

1. Cells  →  1.1. Cell structure and function

6. Plant nutrition  →  6.2. Leaf structure

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2

Which processes can only occur through a membrane?

3. Movement into and out of cells  →  3.1. Diffusion and osmosis

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3

The small intestine of a person contains a lower concentration of glucose than is present in the blood. The cells of the villi absorb glucose. By which process is the glucose absorbed?

8. Human nutrition  →  8.3. Absorption and assimilation

3. Movement into and out of cells  →  3.2. Active transport

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4

X and Y are the reactants in a chemical reaction for which E is the enzyme. The product is Z. The first three stages in the reaction are shown...

5. Enzymes  →  5.1. Enzyme action

5. Enzymes  →  5.2. Effects of temperature and pH

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5

Which row shows what happens in photosynthesis?

6. Plant nutrition  →  6.1. Photosynthesis

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6

The diagram shows a cross-section of a dicotyledonous leaf. Which labelled parts of the leaf carry out photosynthesis?

6. Plant nutrition  →  6.2. Leaf structure

7. Transport in flowering plants  →  7.2. Transpiration and translocation

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7

The graph shows how the rate of photosynthesis of a plant varies with light intensity at two different carbon dioxide concentrations. The temperature is kept constant at 20 °C. X rate of photosynthesis light intensity 0.04% carbon dioxide concentration 1% carbon dioxide concentration Which factor is limiting the rate of photosynthesis at point X?

6. Plant nutrition  →  6.1. Photosynthesis

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8

The diagram shows part of the alimentary canal and associated structures. bile duct P Q What are organs P and Q?

8. Human nutrition  →  8.2. Human digestive system

13. Excretion  →  13.2. Urinary system

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9

Which statement about chemical digestion in the human alimentary canal is correct?

8. Human nutrition  →  8.2. Human digestive system

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10

Which two foods would provide the best sources of carbohydrates, calcium, fibre and vitamin C?

8. Human nutrition  →  8.1. Diet

6. Plant nutrition  →  6.1. Photosynthesis

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11

Which statement best describes the movement of water through the stem of a plant?

7. Transport in flowering plants  →  7.2. Transpiration and translocation

7. Transport in flowering plants  →  7.1. Uptake and transport of water and ions

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12

The graph shows the effect of oxygen concentration on the uptake of nitrate ions from the soil into a root hair cell. oxygen concentration rate of uptake of nitrate ions What can be concluded from this information?

7. Transport in flowering plants  →  7.1. Uptake and transport of water and ions

3. Movement into and out of cells  →  3.2. Active transport

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13

The diagram shows the movement of blood through a tissue. At which labelled point is the pressure highest?

11. Transport in humans  →  11.3. Blood vessels

11. Transport in humans  →  11.4. Blood

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14

The diagram shows arteries and veins in the human forearm. vein artery Which statements apply to a vein in the human forearm?

11. Transport in humans  →  11.3. Blood vessels

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15

The graph shows pressure changes in the left atrium and in the left ventricle during one heartbeat. 0.8 pressure / kPa time / s X atrium ventricle What is the state of the valves in the heart at time X?

11. Transport in humans  →  11.2. Heart

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16

The diagram shows the human gas exchange system. Which structure is the trachea?

9. Human gas exchange  →  9.1. Human gas exchange

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17

The diagram represents some of the muscles involved with breathing. spine Q R breastbone P rib Which muscles are contracting during breathing in?

9. Human gas exchange  →  9.1. Human gas exchange

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18

The diagram shows changes in the volume of a person’s lungs over a period of two minutes. X Y volume of air in lungs / litres time / minutes What could cause the change in the pattern of the graph between points X and Y?

9. Human gas exchange  →  9.1. Human gas exchange

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19

Which statement about the elbow joint is true?

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20

During a sunny day, which substance is excreted from a leaf?

13. Excretion  →  13.1. Excretion

6. Plant nutrition  →  6.1. Photosynthesis

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21

Which process is not a result of negative feedback?

14. Coordination and control  →  14.5. Temperature control

14. Coordination and control  →  14.4. Homeostasis

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22

What is an example of a reflex arc?

14. Coordination and control  →  14.1. Mammalian nervous system

14. Coordination and control  →  14.2. Mammalian sense organs

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23

Which structures cover the pupil at the front of a human eye?

14. Coordination and control  →  14.2. Mammalian sense organs

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24

The diagram shows a vertical section through the human brain. Which structure controls balance and muscular coordination?

14. Coordination and control  →  14.1. Mammalian nervous system

14. Coordination and control  →  14.2. Mammalian sense organs

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25

The graphs show changes in the percentage of smokers and number of lung cancer deaths in a country between 1950 and 2000. percentage of smokers year number of lung cancer deaths per thousand year What could have caused the change in the number of deaths from lung cancer between 1950 and 1975?

12. Disease and immunity  →  12.1. Disease

9. Human gas exchange  →  9.1. Human gas exchange

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26

Where is penicillin produced?

12. Disease and immunity  →  12.2. Antibiotics

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27

During the production of alcohol, why must air be kept out of the fermenter?

18. Biotechnology and genetic modification  →  18.1. Biotechnology

10. Respiration  →  10.1. Respiration

10. Respiration  →  10.3. Anaerobic respiration

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28

Which type of organism depends directly on light energy for its nutrition?

19. Relationships of organisms with one another and with the environment  →  19.1. Energy flow

6. Plant nutrition  →  6.1. Photosynthesis

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29

The diagram shows the flow of substances within an ecosystem. The circles represent trophic levels. Which circle represents herbivores?

19. Relationships of organisms with one another and with the environment  →  19.1. Energy flow

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30

The diagram shows part of the carbon cycle. CO2 in the atmosphere fuel green plants dead organisms animals feeding respiration X Y What are the processes X and Y?

19. Relationships of organisms with one another and with the environment  →  19.2. Nutrient cycles

6. Plant nutrition  →  6.1. Photosynthesis

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31

How is malaria usually transmitted from human to human?

12. Disease and immunity  →  12.1. Disease

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32

The diagram shows a river that flows down from the mountains to the sea. Trees are cut down and removed from the shaded area. area where trees are cut down X Y After a rainstorm, what is the effect on the nitrate ion content at X and at Y?

7. Transport in flowering plants  →  7.1. Uptake and transport of water and ions

3. Movement into and out of cells  →  3.1. Diffusion and osmosis

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33

Which statements describe self-pollination?

16. Development of organisms and continuity of life  →  16.3. Sexual reproduction in plants

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34

A diploid cell produces further cells with a haploid number of chromosomes. Which type of cell division is involved and what is the purpose of the cells produced?

16. Development of organisms and continuity of life  →  16.1. Nuclear division

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35

Where does the placenta allow the exchange of materials to take place between mother and fetus?

16. Development of organisms and continuity of life  →  16.4. Sexual reproduction in humans

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36

Which row correctly pairs a hormone with its function in the menstrual cycle?

16. Development of organisms and continuity of life  →  16.4. Sexual reproduction in humans

14. Coordination and control  →  14.3. Mammalian hormones

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37

Genetic engineering can be used to introduce new characteristics into animals and plants. Which characteristic is not likely to be introduced into a cereal crop plant by genetic engineers?

18. Biotechnology and genetic modification  →  18.2. Genetic modification

18. Biotechnology and genetic modification  →  18.1. Biotechnology

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38

In the ABO blood group system, which alleles are codominant?

17. Inheritance  →  17.3. Inheritance

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39

Two black female mice were mated with the same black male. One female had nine offspring, all of which were black. The other female had six black and two white offspring. Which cross represents the parents of the all black family?

17. Inheritance  →  17.3. Inheritance

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40

Which statement is evidence that genes are copied and passed on to the next generation?

16. Development of organisms and continuity of life  →  16.2. Asexual and sexual reproduction

17. Inheritance  →  17.3. Inheritance

17. Inheritance  →  17.4. Selection

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