Biology – Cambridge IGCSE: Coordination and Response
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There are twenty questions in this quiz. Select the correct answer from the given choices.
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Question 1 of 20
1. Question
1 point(s)The diagram shows a cross-section of the human eye.
Which label points to the spot in the eye where vision is the sharpest?
CorrectIncorrect -
Question 2 of 20
2. Question
1 point(s)Three plant shoots have their tips removed. Two of the shoots have a piece of agar gel placed on them, as shown in the diagram. The agar gel contains auxin. The shoots are exposed to light coming from one direction.
What is the appearance of the shoots after two days?
CorrectIncorrect -
Question 3 of 20
3. Question
1 point(s)The diagrams show the structures on each side of a synaptic cleft.
Which diagram is correctly labelled?
CorrectIncorrect -
Question 4 of 20
4. Question
1 point(s)The diagram shows a vertical section through part of a human eye. A fly is coming nearer to the eye. The eye begins to focus the image of the fly on its retina.
How do the labelled parts of the diagram change?Q R S A contracts thinner tighter B relaxes fatter slacker C contracts fatter slacker D relaxes thinner tighter CorrectIncorrect -
Question 5 of 20
5. Question
1 point(s)The diagram shows a neurone carrying an impulse.
Which row describes the type of neurone and the direction of impulse?type of neurone direction of impulse A motor towards the spinal cord B motor away from the spinal cord C sensory
towards the spinal cord D sensory away from the spinal cord CorrectIncorrect -
Question 6 of 20
6. Question
1 point(s)The diagram shows some bones and muscles in a leg of a human.
What happens to muscle Y and to the leg at joint Z, when muscle X contracts?muscle Y leg at joint Z A contracts bends B contracts straightens C relaxes bends D relaxes straightens CorrectIncorrect -
Question 7 of 20
7. Question
1 point(s)Which type of cells do all sense organs contain?
CorrectIncorrect -
Question 8 of 20
8. Question
1 point(s)The diagram shows a neurone.
Which structures could be found at X and Y?X Y A brain intestine B brain leg C eye hand D skin spinal cord CorrectIncorrect -
Question 9 of 20
9. Question
1 point(s)A man injures his arm in an accident. Afterwards, he can feel objects touching his hand, but he cannot move his hand away from them.
What could cause this?CorrectIncorrect -
Question 10 of 20
10. Question
1 point(s)During a long race, an athlete’s skin temperature rises.
What causes this?CorrectIncorrect -
Question 11 of 20
11. Question
1 point(s)The diagram shows seedlings in two experiments on the tropic response of seedlings to gravity and light.
How have the seedlings responded?to gravity to light A ✔ ✔ B ✔ x C x ✔ D x x key
✔ = tropic response shown
x = no tropic response shownCorrectIncorrect -
Question 12 of 20
12. Question
1 point(s)How does sweating cool the body?
CorrectIncorrect -
Question 13 of 20
13. Question
1 point(s)Which actions straighten the arm at the elbow joint?
biceps triceps A contracts contracts B contracts relaxes C relaxes contracts D relaxes relaxes CorrectIncorrect -
Question 14 of 20
14. Question
1 point(s)Which response is a result of geotropism?
CorrectIncorrect -
Question 15 of 20
15. Question
1 point(s)The diagram shows a section through part of the eye.
X is a contracted ciliary muscle.
What will happen when it relaxes?CorrectIncorrect -
Question 16 of 20
16. Question
1 point(s)The diagram shows a section through a human eye.
CorrectIncorrect -
Question 17 of 20
17. Question
1 point(s)When the blood glucose concentration is low, which hormone is released and which organ releases it?
hormone organ A glucagon liver B glucagon pancreas C insulin liver D insulin pancreas CorrectIncorrect -
Question 18 of 20
18. Question
1 point(s)Four effects of a specific hormone are listed.
- increased blood pressure
- increased blood glucose concentration
- increased rate of respiration
- reduced blood flow to the gut
What is this hormone?
CorrectIncorrect -
Question 19 of 20
19. Question
1 point(s)The diagram shows a person sweating in hot weather.
What part is played by sweat glands during the process of sweating?CorrectIncorrect -
Question 20 of 20
20. Question
1 point(s)The diagram shows a synapse in a reflex arc.
What are the identities of the two neurones and in which direction does the neurotransmitter pass?neurone P neurone Q direction of passage
of neurotransmitterA motor relay P → Q B motor sensory P → Q C relay motor Q → P D relay sensory Q → P CorrectIncorrect
