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1

Which characteristic of living organisms is represented by gas exchange in the alveoli?

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

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

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2

The diagram shows how Homo sapiens (modern people) could have evolved from earlier ancestors. Homo habilis Homo erectus Homo heidelbergensis Homo sapiens (modern people) Which statement about modern people and their ancestors is correct?

19. Organisms and their environment  →  19.4. Populations

18. Variation and selection  →  18.1. Variation

18. Variation and selection  →  18.3. Selection

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3

What is a characteristic of both insects and arachnids?

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

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

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4

An animal can swim, has a backbone and produces milk. Which group does this animal belong to?

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

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

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5

In which cell structure does aerobic respiration occur?

2. Organisation of the organism  →  2.1. Cell structure

7. Human nutrition  →  7.5. Absorption

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6

actual size = Which formula shows the correct way to calculate the actual size of an object?

2. Organisation of the organism  →  2.2. Size of specimens

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7

What is a reason why oxygen diffuses into the blood from an alveolus in the lungs?

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

9. Transport in animals  →  9.4. Blood

13. Excretion in humans  →  13.1. Excretion in humans

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8

The diagram shows two plant cells. cell X high water potential cell Y low water potential Which statement describes what will happen to the water in the cells?

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

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9

Which row describes active transport?

3. Movement into and out of cells  →  3.3. Active transport

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10

Which row shows the elements that make up a carbohydrate molecule?

4. Biological molecules  →  4.1. Biological molecules

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11

Large molecules are made from smaller molecules. Which row names the large molecule and the small molecules it is made from?

4. Biological molecules  →  4.1. Biological molecules

7. Human nutrition  →  7.4. Chemical digestion

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12

The graph shows the effect of temperature on the activity of an enzyme. enzyme activity temperature Which statements about the enzyme and substrate at temperatures 1 and 2 are correct?

5. Enzymes  →  5.1. Enzymes

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13

In an investigation, the rate of photosynthesis in a plant is measured at different temperatures. The investigation is carried out at three different light intensities. The results are shown...

6. Plant nutrition  →  6.1. Photosynthesis

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14

In plants, which ions are used to make amino acids?

6. Plant nutrition  →  6.1. Photosynthesis

19. Organisms and their environment  →  19.3. Nutrient cycles

17. Inheritance  →  17.1. Chromosomes, genes and proteins

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15

The diagram shows a cross-section of part of a leaf. Which structure is the cuticle?

6. Plant nutrition  →  6.2. Leaf structure

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16

Poor nutrition can lead to a condition called rickets in which bones fail to develop properly. The table shows some minerals and vitamins present in four foods. Which food would be best for a child who has rickets?

7. Human nutrition  →  7.1. Diet

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17

Which food group is chemically digested in the mouth, passes through the stomach and continues to be broken down by chemical digestion in the small intestine?

7. Human nutrition  →  7.4. Chemical digestion

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18

Which row about bile is correct?

7. Human nutrition  →  7.3. Physical digestion

7. Human nutrition  →  7.4. Chemical digestion

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19

The small intestine is where most digested foods are absorbed. The small intestine has many villi. These are some features of villi. Each villus contains a network of capillaries. Each villus contains a lacteal. The surface of each epithelial cell is covered with microvilli. Villi increase the internal surface area of the small intestine. Which statements about the villi are important for the efficient absorption of glucose?

7. Human nutrition  →  7.5. Absorption

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20

Which statements about xylem vessels are correct?

8. Transport in plants  →  8.1. Xylem and phloem

8. Transport in plants  →  8.3. Transpiration

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21

Dodder is a plant that grows on other plants called hosts. The dodder plant connects to the host’s vascular bundles. The dodder plant does not have green leaves or roots. What correctly describes the regions for translocation?

8. Transport in plants  →  8.4. Translocation

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22

The diagram shows part of the human circulatory system. Which structure is the hepatic vein?

9. Transport in animals  →  9.3. Blood vessels

7. Human nutrition  →  7.2. Digestive system

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23

What is a feature of passive immunity?

10. Diseases and immunity  →  10.1. Diseases and immunity

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24

The graph shows the change in the rate of breathing of an athlete. rate of breathing time Y What causes the response during time period Y?

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

12. Respiration  →  12.3. Anaerobic respiration

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25

These are processes that occur in plants. active transport cell division osmosis transpiration Which processes use energy from respiration?

12. Respiration  →  12.1. Respiration

6. Plant nutrition  →  6.1. Photosynthesis

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26

What is the balanced equation for anaerobic respiration in yeast?

12. Respiration  →  12.3. Anaerobic respiration

12. Respiration  →  12.2. Aerobic respiration

6. Plant nutrition  →  6.1. Photosynthesis

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27

Which labelled organ has a major role in the assimilation of amino acids by converting them to proteins?

13. Excretion in humans  →  13.1. Excretion in humans

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28

A toxin that is the same shape as a neurotransmitter prevents muscle contraction. Which statement explains why the toxin prevents muscle contraction?

10. Diseases and immunity  →  10.1. Diseases and immunity

14. Coordination and response  →  14.1. Coordination and response

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29

The diagram shows the structure of the human eye. Which labelled part refracts light entering the eye?

14. Coordination and response  →  14.2. Sense organs

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30

A patient is injected with adrenaline. Which graph shows the expected changes to pulse rate and blood glucose concentration?

14. Coordination and response  →  14.3. Hormones

14. Coordination and response  →  14.4. Homeostasis

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31

The diagram shows the shoot and root of a seedling, responding to gravity. Which row shows where the auxin accumulates and the effect of this in the shoot?

14. Coordination and response  →  14.5. Tropic responses

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

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32

Which factors would increase the chance of antibiotic resistance developing?

15. Drugs  →  15.1. Drugs

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33

What is an advantage of using asexual reproduction in crop plants?

16. Reproduction  →  16.3. Sexual reproduction in plants

16. Reproduction  →  16.1. Asexual reproduction

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34

The graphs show the concentrations in the blood of four hormones involved in controlling the menstrual cycle. Which line represents FSH (follicle-stimulating hormone)?

16. Reproduction  →  16.5. Sex hormones in humans

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35

The mitotic index of a tissue is the percentage of cells in the tissue that are dividing by mitosis. The table shows information about two tissue samples, X and Y. total number of cells in the tissue sample number of cells not dividing by mitosis number of cells dividing by mitosis tissue sample X Y Which statement is correct?

17. Inheritance  →  17.2. Mitosis

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36

Fruit flies can either have red eyes or white eyes. This is a sex-linked characteristic with the gene for eye colour located on the X chromosome. The allele for red eyes (R) is dominant over the allele for white eyes . A fruit fly with the genotype XRXr was crossed with a fruit fly with the genotype XRY. Which percentage of the offspring will have red eyes?

17. Inheritance  →  17.4. Monohybrid inheritance

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37

Which statement about variation is correct?

18. Variation and selection  →  18.1. Variation

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38

Which row shows part of the nitrogen cycle?

19. Organisms and their environment  →  19.3. Nutrient cycles

6. Plant nutrition  →  6.1. Photosynthesis

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39

When in vitro fertilisation (IVF) is used in captive breeding programmes, these processes occur. The egg cell is fertilised. The egg cell is removed from an ovary. The embryo is implanted into the uterus. The sperm cells are added. In which order do these processes occur?

20. Human influences on ecosystems  →  20.4. Conservation

16. Reproduction  →  16.4. Sexual reproduction in humans

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40

The diagram shows a bacterial cell. Which cell structure is useful in genetic modification?

2. Organisation of the organism  →  2.1. Cell structure

21. Biotechnology and genetic modification  →  21.1. Biotechnology and genetic modification

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