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1

Which row is correct?

1. Cells  →  1.1. Cell structure and function

6. Plant nutrition  →  6.2. Leaf structure

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2

A piece of plant tissue is transferred from a beaker of water into a concentrated sugar solution. Which row describes what happens?

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

1. Cells  →  1.1. Cell structure and function

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

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3

The following statements refer to the movement of substances into and out of cells. Energy from respiration is required. Energy from respiration is not required. Movement occurs down a concentration gradient. Net movement is from a region of higher concentration to a region of lower concentration. Net movement is from a region of lower concentration to a region of higher concentration. Which statements apply to active transport?

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

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

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4

Which word describes an enzyme that has its active site changed by high temperature?

5. Enzymes  →  5.2. Effects of temperature and pH

5. Enzymes  →  5.1. Enzyme action

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5

Hydrogencarbonate indicator changes colour according to the concentration of carbon dioxide present. The table shows how hydrogencarbonate indicator changes colour. colour of hydrogencarbonate indicator concentration of carbon dioxide orange atmospheric carbon dioxide concentration yellow higher than atmospheric carbon dioxide concentration purple lower than atmospheric carbon dioxide concentration Four test-tubes were set up under different conditions. The colour of hydrogencarbonate indicator in each test-tube at the start of the experiment and after 1 hour is also shown...

6. Plant nutrition  →  6.1. Photosynthesis

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6

What describes the upper cuticle of a leaf?

6. Plant nutrition  →  6.2. Leaf structure

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

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7

A lack of certain mineral ions affects the growth of young plants. Which effects are caused by a lack of magnesium ions and a lack of nitrate ions?

6. Plant nutrition  →  6.3. Mineral nutrition

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

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8

The graph shows some of the nutrients found in peanuts. sugars fats proteins nutrients percentage nutrient content A student tested peanuts with four food tests. Which row shows the results?

4. Biological molecules  →  4.1. Biological molecules

8. Human nutrition  →  8.1. Diet

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9

Which row shows factors that may contribute to famine?

19. Relationships of organisms with one another and with the environment  →  19.3. Ecosystems and biodiversity

18. Biotechnology and genetic modification  →  18.1. Biotechnology

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10

The diagram shows part of the human alimentary canal and associated organs. Which row describes the functions of parts shown...

8. Human nutrition  →  8.2. Human digestive system

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11

How does water enter root hair cells?

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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12

The diagram shows the pathway of water molecules through part of a leaf, seen under a microscope, in transverse section. Where does water evaporate?

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

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

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13

Which row describes the functions of the blood components?

11. Transport in humans  →  11.4. Blood

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14

The diagram shows how the volume of blood in the left ventricle of a human heart changes during one heart beat. When is the left ventricle contracting?

11. Transport in humans  →  11.2. Heart

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15

The diagram represents the blood supply to the liver and to the kidneys. liver kidneys from ileum Which vessels contain blood with the highest and lowest concentrations of urea?

13. Excretion  →  13.2. Urinary system

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16

Which statement is true for aerobic respiration?

10. Respiration  →  10.2. Aerobic respiration

10. Respiration  →  10.3. Anaerobic respiration

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17

The graph shows the concentration of substance X in a person’s blood, before, during and after exercise. concentration of substance X in the blood exercise stops exercise starts at rest time What is substance X?

10. Respiration  →  10.3. Anaerobic respiration

11. Transport in humans  →  11.4. Blood

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18

During exercise, a person breathes more deeply and more frequently. Which is a result of this?

10. Respiration  →  10.3. Anaerobic respiration

9. Human gas exchange  →  9.1. Human gas exchange

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19

The diagram shows structures in a human which form and store urine. Liquids pass through tubes X, Y and Z in the directions shown...

13. Excretion  →  13.2. Urinary system

11. Transport in humans  →  11.3. Blood vessels

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20

Which response will happen if a person walks into a cold environment?

14. Coordination and control  →  14.5. Temperature control

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21

The diagram shows the human brain. What is the name of the shaded part of the brain?

14. Coordination and control  →  14.2. Mammalian sense organs

14. Coordination and control  →  14.1. Mammalian nervous system

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22

What happens in the eye to produce the pupil reflex to bright light?

14. Coordination and control  →  14.2. Mammalian sense organs

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23

The diagram shows three positions, X, Y and Z, where nerve impulses are blocked by a drug. Z X Y brain spinal cord sensory neurone motor neurone Which person listed below moves their leg in response to a pinprick, but does not feel it?

14. Coordination and control  →  14.1. Mammalian nervous system

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24

The diagram shows how antagonistic muscles are arranged in the arm. Which row describes the muscle action when the arm is straightened?

11. Transport in humans  →  11.2. Heart

14. Coordination and control  →  14.1. Mammalian nervous system

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25

Electronic cigarettes are a cigarette substitute allowing nicotine to be inhaled without the other components found in cigarette smoke. Which effects of cigarette smoking will also be effects of using electronic cigarettes?

12. Disease and immunity  →  12.1. Disease

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26

The diagram shows the structure of a bacterium. In what way does this differ from a cell of a fungus?

1. Cells  →  1.1. Cell structure and function

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27

Which microorganisms are involved in the decomposition of dead plant material?

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

18. Biotechnology and genetic modification  →  18.1. Biotechnology

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28

What is the reason for describing the flow of energy through an ecosystem as non-cyclic?

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

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29

The diagram shows a complete food web. organism 4 organism 8 organism 7 organism 6 organism 5 organism 3 organism 2 organism 1 Which row identifies examples of the types of organisms in this food web?

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. carbon dioxide in air and water decay animals green plants death fossilisation X Y Z What do X, Y and Z represent?

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

Coastal marine regions are environments with a rich plant and animal diversity. Which process would reduce the biodiversity of these environments?

19. Relationships of organisms with one another and with the environment  →  19.4. Effects of humans on ecosystems

19. Relationships of organisms with one another and with the environment  →  19.5. Conservation

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32

Hardwood trees in tropical rainforests are often harvested for timber. A single quick-growing crop, such as palm oil, is then grown on the same land. What effect will removing the rainforest have on the environment?

19. Relationships of organisms with one another and with the environment  →  19.4. Effects of humans on ecosystems

19. Relationships of organisms with one another and with the environment  →  19.5. Conservation

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33

The diagram shows part of a Bryophyllum plant. small plants leaf small plant falls to the ground and grows into a new plant Which best describes how the new plants are produced?

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

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34

Six bean seeds were soaked in cold water. Three of them were boiled and cooled. The boiled and the non-boiled seeds were chopped up and then placed on the surface of agar jelly containing starch. After two days, all the seeds were removed and the jelly was tested with iodine solution. The diagram shows the result of the experiment. boiled seeds non-boiled seeds key yellow / brown colour blue / black colour position of chopped seeds at start of experiment What is the explanation for the results with the non-boiled bean seeds?

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

4. Biological molecules  →  4.1. Biological molecules

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35

The diagram shows how the blood of a human fetus flows close to the mother’s blood in the placenta. mother’s blood blood of fetus X Y Which substances are present at X in higher concentrations than at Y?

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

11. Transport in humans  →  11.4. Blood

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36

The table shows four ways in which diseases may be passed from one human to another. Which row shows the ways in which HIV may be transferred?

12. Disease and immunity  →  12.1. Disease

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37

Which sex chromosomes are present in every sperm cell?

17. Inheritance  →  17.3. Inheritance

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

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38

Earlobes can either be attached to the cheek or be ‘free’ . This characteristic is controlled by a single gene. The allele for attached earlobes is recessive. The diagram shows the inheritance of attached earlobes in one family. key male with free earlobes female with free earlobes male with attached earlobes female with attached earlobes Which two individuals must be heterozygous for earlobe attachment?

17. Inheritance  →  17.3. Inheritance

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39

Which statements about natural selection are correct?

17. Inheritance  →  17.4. Selection

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40

Some stages in the production of human insulin are listed. Genetically modified E. coli bacteria are grown in large fermenters. The gene for human insulin is inserted into the DNA of a bacterium called E. coli. The gene for human insulin is obtained from human pancreas cells. Human insulin is extracted and purified. What is the correct sequence of these stages?

18. Biotechnology and genetic modification  →  18.2. Genetic modification

18. Biotechnology and genetic modification  →  18.1. Biotechnology

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