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1

Living animals release carbon dioxide. This is an example of which life process?

13. Excretion in humans  →  13.1. Excretion in humans

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

12. Respiration  →  12.1. Respiration

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2

Some statements about species are given. Members of a species all look identical. Members of a species belong to the same genus. Members of a species can produce fertile offspring. Species are named using an international system. Which statements are correct?

1. Characteristics and classification of living organisms  →  1.2. Concept and uses of classification systems

19. Organisms and their environment  →  19.4. Populations

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3

The table shows some features of different animals. Which animal is a reptile?

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

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4

Which structures are found in the cells of all living organisms?

2. Organisation of the organism  →  2.1. Cell structure

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5

A diagram of a human red blood cell is shown...

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

9. Transport in animals  →  9.4. Blood

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6

Which statements are correct for both diffusion and 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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7

What is a role of water in digestion?

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

7. Human nutrition  →  7.4. Chemical digestion

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8

The concentration of sodium ions in the soil is lower than the concentration inside root hair cells. Which process will be used when sodium ions are taken into root hair cells from the soil?

8. Transport in plants  →  8.2. Water uptake

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

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9

The diagram represents a protein molecule. What do the small circles represent?

17. Inheritance  →  17.1. Chromosomes, genes and proteins

7. Human nutrition  →  7.4. Chemical digestion

4. Biological molecules  →  4.1. Biological molecules

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10

Which processes depend on the action of enzymes?

5. Enzymes  →  5.1. Enzymes

7. Human nutrition  →  7.4. Chemical digestion

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11

Which diagram of an enzyme, active site and substrate is correct?

5. Enzymes  →  5.1. Enzymes

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12

Four test-tubes are set up as shown...

6. Plant nutrition  →  6.1. Photosynthesis

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

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13

Which row shows the uses of some carbohydrates in plants?

6. Plant nutrition  →  6.1. Photosynthesis

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14

The lack of which component of a balanced diet will lead to the development of scurvy?

7. Human nutrition  →  7.1. Diet

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15

Which structure is the duodenum?

7. Human nutrition  →  7.2. Digestive system

7. Human nutrition  →  7.5. Absorption

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16

The food label is from a packet of cereal. The label can help someone who is concerned about their diet. Nutrition Typical values 100 g contains Energy Fat of which saturates Carbohydrate of which sugars Fibre Protein Salt 985 kJ 235 kcal 1.5 g 0.3 g 45.5 g 3.8 g 2.8 g 7.7 g 0.5 g A person eats 45 g of cereal. One of the food types listed in the label can help prevent constipation. How many grams of this food type does the person eat?

7. Human nutrition  →  7.1. Diet

4. Biological molecules  →  4.1. Biological molecules

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17

Which pathway is taken by water through a plant?

8. Transport in plants  →  8.2. Water uptake

8. Transport in plants  →  8.3. Transpiration

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18

Which row shows the transpiration rate for the conditions described?

8. Transport in plants  →  8.3. Transpiration

6. Plant nutrition  →  6.1. Photosynthesis

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19

The diagram shows the human heart. Which label shows the left ventricle?

9. Transport in animals  →  9.2. Heart

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20

Which row shows the features of an artery or a vein?

9. Transport in animals  →  9.3. Blood vessels

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21

What are features of gas exchange surfaces in animals?

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

6. Plant nutrition  →  6.2. Leaf structure

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22

Which chemical can be used to show the presence of carbon dioxide gas?

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

4. Biological molecules  →  4.1. Biological molecules

6. Plant nutrition  →  6.1. Photosynthesis

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23

The diagram represents the exchange of gases during breathing and during respiration in the body. carbon dioxide in blood oxygen in blood carbon dioxide oxygen X Y What is represented by X?

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

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24

Which molecule is produced by anaerobic respiration in yeast?

12. Respiration  →  12.3. Anaerobic respiration

21. Biotechnology and genetic modification  →  21.2. Biotechnology

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25

The diagram shows the human body and some of its organs. Which structure removes urea from the blood?

13. Excretion in humans  →  13.1. Excretion in humans

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26

The diagram shows the structures in a reflex arc. receptor muscle X What is X?

14. Coordination and response  →  14.1. Coordination and response

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27

Changes in light intensity cause changes in the diameter of the pupil in the eye. Which rows show the pupil reflex?

14. Coordination and response  →  14.2. Sense organs

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28

A hormone is injected into a person to reduce their blood glucose concentration. Which endocrine gland is not functioning properly in a person who needs to have this injection?

14. Coordination and response  →  14.3. Hormones

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29

The table shows which antibiotics are effective against different types of bacteria. The shaded areas show the antibiotic is effective against that type of bacteria. type of bacteria antibiotic MRSA Streptococcus Pseudomonas Anaerobes A person has a disease caused by a type of Streptococcus bacteria and a second infection caused by a type of Pseudomonas bacteria. Which antibiotic should be taken?

15. Drugs  →  15.1. Drugs

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30

The diagram shows one way that a plant can reproduce. What is a feature of this type of reproduction?

16. Reproduction  →  16.3. Sexual reproduction in plants

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31

Which human characteristics are inherited?

17. Inheritance  →  17.4. Monohybrid inheritance

17. Inheritance  →  17.1. Chromosomes, genes and proteins

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32

In a sperm cell, which structure contains enzymes that can digest the jelly coat of an egg cell?

16. Reproduction  →  16.4. Sexual reproduction in humans

2. Organisation of the organism  →  2.1. Cell structure

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33

When breeding, which pair of parents will be pure-breeding for a particular characteristic?

17. Inheritance  →  17.4. Monohybrid inheritance

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34

In a pea plant, the allele for round seeds, R, is dominant to the allele for wrinkled seeds, r. If plants with the genotype Rr are crossed, what are the likely proportions of offspring?

17. Inheritance  →  17.4. Monohybrid inheritance

16. Reproduction  →  16.3. Sexual reproduction in plants

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35

Which definition of continuous variation is correct?

18. Variation and selection  →  18.1. Variation

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36

Which term is used to describe an organism that makes its own organic nutrients?

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

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37

What is the principal source of energy for most food chains?

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

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38

A single tree is food for a large population of caterpillars. Several small birds eat the caterpillars. The small birds are eaten by a bird of prey. Which is the pyramid of biomass?

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

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39

The diagram shows the results of a survey on the types of animals found along a stretch of river near to a factory. rat-tailed maggot sludge worm bloodworm mayfly nymph stonefly nymph mayfly nymph stonefly nymph shrimp caddisfly larva bloodworm leech water louse snail factory emptying pollutants into the water direction of water flow Which animal lives in the least polluted water?

20. Human influences on ecosystems  →  20.3. Pollution

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

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40

Bacteria are useful for manufacturing products for human use. Which statement explains why they are useful?

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

21. Biotechnology and genetic modification  →  21.2. Biotechnology

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