aqa core biology
Biology Unit 1
B1.1 Keeping healthy
B1.2 Nerves & hormones
B1.3 The use and abuse of drugs
B1.4 Interdependence and adaptation
B1.5 Energy and biomass in food chains
B1.6 Waste materials from plants and animals
B1.7 Genetic variation and its control
B1.8 Evolution
B1.1 Keeping healthy
B1.2 Nerves & hormones
B1.3 The use and abuse of drugs
B1.4 Interdependence and adaptation
B1.5 Energy and biomass in food chains
B1.6 Waste materials from plants and animals
B1.7 Genetic variation and its control
B1.8 Evolution
G&T 6 Mark Questions
1. Explain how a vaccine makes someone immune to mumps.
2. Explain how the overuse of antibiotics has led to the evolution of antibiotic-resistant bacteria.
3. Explain how natural selection could have produced these strains of penicillin resistant bacteria.
4. Explain, as fully as you can, how white blood cells protect us from disease.
5. Whilst observing mouse behaviour, a student drops a pen near the mouse’s cage. The mouse jumps at the noise. Describe, as fully as you can, the process by which the mouse responds to the stimulus of the dropped pen.
6. Describe the benefits and possible problems that may result from the use of hormones to regulate human reproduction. You should refer to fertility drugs and contraceptives in your answer.
7. A student grew a plant in an upright pot. She then put the pot in a horizontal position and left the plant in the dark for two days. Explain fully how the plant responded.
8. The food chain below shows the interaction of some organisms that live on a moorland:
Heather --> Rabbit --> Stoat --> Fox
Explain as fully as you can, why only a small percentage of the suns energy captured by the Heather is eventually incorporated into the body tissues of the fox.
9. Each autumn, many trees lose their leaves. Describe how carbon compounds in the leaves can be recycles so that they can be used again by the trees.
10. Explain, as fully as you can, what eventually happens to energy from the sun which is captured by plants in a wood.
11. There are two types of reproduction, asexual and sexual. Explain fully the difference between the two.
12. Champion cows produce large quantities of milk. Describe how adult cell cloning could be used to produce a clone of a ‘champion’ cow.
13. The theory of evolution via natural selection was proposed by Darwin. Explain how evolution occurs via natural selection.
2. Explain how the overuse of antibiotics has led to the evolution of antibiotic-resistant bacteria.
3. Explain how natural selection could have produced these strains of penicillin resistant bacteria.
4. Explain, as fully as you can, how white blood cells protect us from disease.
5. Whilst observing mouse behaviour, a student drops a pen near the mouse’s cage. The mouse jumps at the noise. Describe, as fully as you can, the process by which the mouse responds to the stimulus of the dropped pen.
6. Describe the benefits and possible problems that may result from the use of hormones to regulate human reproduction. You should refer to fertility drugs and contraceptives in your answer.
7. A student grew a plant in an upright pot. She then put the pot in a horizontal position and left the plant in the dark for two days. Explain fully how the plant responded.
8. The food chain below shows the interaction of some organisms that live on a moorland:
Heather --> Rabbit --> Stoat --> Fox
Explain as fully as you can, why only a small percentage of the suns energy captured by the Heather is eventually incorporated into the body tissues of the fox.
9. Each autumn, many trees lose their leaves. Describe how carbon compounds in the leaves can be recycles so that they can be used again by the trees.
10. Explain, as fully as you can, what eventually happens to energy from the sun which is captured by plants in a wood.
11. There are two types of reproduction, asexual and sexual. Explain fully the difference between the two.
12. Champion cows produce large quantities of milk. Describe how adult cell cloning could be used to produce a clone of a ‘champion’ cow.
13. The theory of evolution via natural selection was proposed by Darwin. Explain how evolution occurs via natural selection.