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1

Which structure is found in a palisade cell but not in a liver cell?

2. Organisation of the organism  →  2.1. Cell structure

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2

What are the levels of organisation of • the wall of a villus, • the small intestine?

2. Organisation of the organism  →  2.1. Cell structure

7. Human nutrition  →  7.5. Absorption

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3

Which characteristic of living organisms is described by the following definition?

1. Characteristics and classification of living organisms  →  1.1. Characteristics of living organisms

18. Variation and selection  →  18.2. Adaptive features

17. Inheritance  →  17.4. Monohybrid inheritance

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4

Phloem is an example of A a cell. B a tissue. C an organ. D an organ system.

2. Organisation of the organism  →  2.1. Cell structure

8. Transport in plants  →  8.1. Xylem and phloem

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5

Which cell shows the position of the nucleus correctly?

17. Inheritance  →  17.1. Chromosomes, genes and proteins

2. Organisation of the organism  →  2.1. Cell structure

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6

Which animal is an annelid?

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

1. Characteristics and classification of living organisms  →  1.1. Characteristics of living organisms

17. Inheritance  →  17.4. Monohybrid inheritance

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7

What is the correct order of arthropod groups, from those with most legs to those with fewest legs?

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

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8

Root hair cells are found on plant roots. Which feature would be present in a root hair cell but not a sperm cell?

2. Organisation of the organism  →  2.1. Cell structure

8. Transport in plants  →  8.2. Water uptake

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9

The diagram shows the action of amylase. amylase part of a starch molecule What is the function of the enzyme amylase?

7. Human nutrition  →  7.4. Chemical digestion

5. Enzymes  →  5.1. Enzymes

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10

Dietary fibre passes through several structures after leaving the stomach. In which order does the dietary fibre pass through these structures?

7. Human nutrition  →  7.2. Digestive system

7. Human nutrition  →  7.3. Physical digestion

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11

Small molecules are used as the basic units in the synthesis of large food molecules. Which statement is correct?

4. Biological molecules  →  4.1. Biological molecules

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12

What happens in osmosis?

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

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

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13

The roots of plants take up nitrates from the soil. What are the nitrates used to make?

6. Plant nutrition  →  6.1. Photosynthesis

19. Organisms and their environment  →  19.3. Nutrient cycles

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14

The diagram shows a fetus attached by the placenta to the uterus wall of the mother. uterus wall fetus placenta By which process do all substances pass between the fetus and the mother in the placenta?

16. Reproduction  →  16.4. Sexual reproduction in humans

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15

Which is an incisor tooth?

7. Human nutrition  →  7.3. Physical digestion

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16

A human digestive enzyme breaks down its substrate at a fast rate at 35 °C. What would occur if the enzyme and substrate were kept at 75 °C?

5. Enzymes  →  5.1. Enzymes

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17

An experiment is set up to investigate the uptake of oxygen by germinating seeds. X Y soda lime absorbs carbon dioxide dead seeds rinsed in antiseptic germinating seeds water bath at 25 °C coloured water coloured water What happens to the levels at X and Y?

16. Reproduction  →  16.3. Sexual reproduction in plants

8. Transport in plants  →  8.2. Water uptake

8. Transport in plants  →  8.3. Transpiration

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18

Which type of cells do all sense organs contain?

14. Coordination and response  →  14.2. Sense organs

2. Organisation of the organism  →  2.1. Cell structure

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19

Which materials are excreted by kidneys and lungs?

13. Excretion in humans  →  13.1. Excretion in humans

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20

The diagram shows a germinated bean seed with a horizontal radicle. This is placed on a slowly rotating disc and is left for three days. electric motor slowly rotating disc radicle bean seed Which diagram shows the appearance of the radicle after three days?

16. Reproduction  →  16.3. Sexual reproduction in plants

8. Transport in plants  →  8.4. Translocation

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21

The graph shows the variation in a person’s body temperature over a period of time. Which temperature change is likely to cause most sweating?

14. Coordination and response  →  14.4. Homeostasis

8. Transport in plants  →  8.3. Transpiration

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22

Which group contains substances that are all carried in the blood?

9. Transport in animals  →  9.4. Blood

4. Biological molecules  →  4.1. Biological molecules

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23

The diagram shows a plant shoot and the same shoot six hours later. plant shoot same shoot six hours later Which change in environmental conditions could cause this change in the appearance of the shoot?

14. Coordination and response  →  14.5. Tropic responses

6. Plant nutrition  →  6.1. Photosynthesis

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24

Which process does not release carbon dioxide to the atmosphere?

6. Plant nutrition  →  6.1. Photosynthesis

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25

In what form does a plant absorb and lose water?

8. Transport in plants  →  8.3. Transpiration

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26

The diagram shows the male reproductive system. X What is the tube labelled X?

16. Reproduction  →  16.4. Sexual reproduction in humans

13. Excretion in humans  →  13.1. Excretion in humans

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27

The colour of a mouse’s fur is controlled by a single pair of alleles. A mouse with black fur was crossed with a mouse with white fur. All the offspring had black fur. What would be the most likely ratio in several litters of offspring if two of these black offspring were crossed?

17. Inheritance  →  17.4. Monohybrid inheritance

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28

Which is not growth of an organism?

1. Characteristics and classification of living organisms  →  1.1. Characteristics of living organisms

2. Organisation of the organism  →  2.1. Cell structure

19. Organisms and their environment  →  19.4. Populations

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29

The diagram shows the early growth of a green plant. What is occurring?

17. Inheritance  →  17.2. Mitosis

16. Reproduction  →  16.3. Sexual reproduction in plants

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30

The diagram shows a potato tuber that developed from the stem of a parent potato plant. Three shoots are starting to grow from the tuber. shoot tuber How do the genotypes of the shoots compare with the genotypes of the tuber and of the parent?

17. Inheritance  →  17.4. Monohybrid inheritance

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31

The diagram shows a neurone. X Y Which structures could be found at X and Y?

2. Organisation of the organism  →  2.1. Cell structure

14. Coordination and response  →  14.2. Sense organs

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32

What are the chromosomes for the two sexes in human beings?

16. Reproduction  →  16.4. Sexual reproduction in humans

17. Inheritance  →  17.1. Chromosomes, genes and proteins

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33

The diagram shows four places on a river, where water samples were taken. W X Y Z direction of flow untreated sewage outlet Which graph shows oxygen concentrations in the river?

20. Human influences on ecosystems  →  20.3. Pollution

6. Plant nutrition  →  6.1. Photosynthesis

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34

The diagram shows the carbon cycle. Which process produces carbon dioxide from substances made by photosynthesis millions of years ago?

6. Plant nutrition  →  6.1. Photosynthesis

19. Organisms and their environment  →  19.3. Nutrient cycles

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35

Different pesticides were tested to see how poisonous they were to fish. Scientists found the concentration of pesticide that killed 50 % of the fish within four days. The table shows the results of the tests. pesticide concentration that killed 50 % of the fish / p.p.m. DDT 0.03 dieldrin 0.01 malathion 12.20 parathion 2.11 Which pesticide was the most dangerous to the fish?

20. Human influences on ecosystems  →  20.3. Pollution

20. Human influences on ecosystems  →  20.4. Conservation

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36

The diagram gives a simplified scheme for energy flow through an ecosystem. producers consumers Which processes do the labelled arrows represent?

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

19. Organisms and their environment  →  19.1. Energy flow

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37

The graph shows the rate of growth for a population of herbivores. Which is the exponential phase in the growth of this population?

19. Organisms and their environment  →  19.4. Populations

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38

The diagram shows a food web. At which level does energy from the Sun enter the food web?

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

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39

The diagram shows part of the carbon cycle. atmosphere animals plants Which numbers represent excretion?

19. Organisms and their environment  →  19.3. Nutrient cycles

6. Plant nutrition  →  6.1. Photosynthesis

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40

The food chain shows the number of animals relying on two bushes for their survival. At which step in the food chain do the organisms have the greatest amount of energy?

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

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