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)Which row shows the function of rod cells?
have greater
sensitivity to lightgive colour vision A ✔ ✔ B ✔ x C x ✔ D x x CorrectIncorrect -
Question 2 of 20
2. Question
1 point(s)A student begins to lose control of her bicycle while travelling down a hill at speed.
The concentration of which substance will begin to increase rapidly in her blood?CorrectIncorrect -
Question 3 of 20
3. Question
1 point(s)Which process occurring at a synapse is prevented by the presence of heroin?
CorrectIncorrect -
Question 4 of 20
4. Question
1 point(s)The diagram shows the structure of the eye.
Which structure refracts light?
CorrectIncorrect -
Question 5 of 20
5. Question
1 point(s)A student used two seedlings X and Y to investigate phototropism.
The diagram shows their investigation.
Which statement explains the difference in results between X and Y?CorrectIncorrect -
Question 6 of 20
6. Question
1 point(s)The diagram shows part of the mechanism that controls blood sugar concentration.
A person does one hour of exercise.
Starting with the pancreas, what is the sequence of events in which the hormone glucagon is involved?CorrectIncorrect -
Question 7 of 20
7. Question
1 point(s)What does the central nervous system consist of?
CorrectIncorrect -
Question 8 of 20
8. Question
1 point(s)What is a response to a low concentration of glucose in the blood?
CorrectIncorrect -
Question 9 of 20
9. Question
1 point(s)The diagram shows the appearance of the iris and pupil in three different light conditions.
Which row shows the size of the pupil of the eye in each light condition?no
lightmoderate
lightbright
lightA 1 2 3 B 1 3 2 C 2 1 3 D 3 2 1 CorrectIncorrect -
Question 10 of 20
10. Question
1 point(s)In a mammal, body temperature is regulated by negative feedback.
As a result of negative feedback, what happens in the mammal’s body as the temperature of the external environment decreases?CorrectIncorrect -
Question 11 of 20
11. Question
1 point(s)The neurones at synapses contain vesicles.
Which type of substance is found inside the vesicles?CorrectIncorrect -
Question 12 of 20
12. Question
1 point(s)The diagram shows the muscles that control the size of the pupil in an eye.
How do the muscles make the pupil smaller?circular muscles radial muscles A contract contract B contract relax C relax contract D relax relax CorrectIncorrect -
Question 13 of 20
13. Question
1 point(s)More adrenaline is produced by the adrenal glands when a person is frightened.
This increase affects several parts of the body.change increases decreases 1 blood glucose concentration x ✔ 2 heart rate ✔ x 3 breathing rate and depth ✔ x 4 dilation of pupil x ✔ key
✔= yes
x = no
Which rows are correct?CorrectIncorrect -
Question 14 of 20
14. Question
1 point(s)Lactic acid builds up in the muscles during vigorous exercise.
During recovery, how is this lactic acid removed?CorrectIncorrect -
Question 15 of 20
15. Question
1 point(s)Which process transmits an impulse across a synapse?
CorrectIncorrect -
Question 16 of 20
16. Question
1 point(s)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?accumulates effect A lower surface inhibits cell elongation B lower surface promotes cell elongation C upper surface inhibits cell division D upper surface promotes cell division CorrectIncorrect -
Question 17 of 20
17. Question
1 point(s)The diagram shows a synapse.
Heroin is a drug that can bind with receptors in a synapse.
What is the most likely effect heroin will have on the synapse?CorrectIncorrect -
Question 18 of 20
18. Question
1 point(s)In a plant shoot, where is auxin made and what is its effect?
where made effect A leaves promotes cell division B leaves promotes cell elongation C shoot tip promotes cell division D shoot tip promotes cell elongation CorrectIncorrect -
Question 19 of 20
19. Question
1 point(s)A boy accidentally touches a very hot object and immediately takes his hand away.
In this reflex action, what is the effector?CorrectIncorrect -
Question 20 of 20
20. Question
1 point(s)Compared to the hormonal system, the responses of the nervous system are
CorrectIncorrect
