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CIE iGCSE Co-Ordinated Science B13.1 Coordination and response Exam Style Questions Paper 1

CIE iGCSE Co-Ordinated Science B13.1 Coordination and response Exam Style Questions Paper 1

Question

A plant in a pot is placed on its side in a dark cupboard. The shoots grow upwards.
What is this an example of?
A decomposition
B gravitropism
C photosynthesis
D phototropism

▶️Answer/Explanation

Ans : B

Question

When a seed germinates in the soil, the root grows downwards.
Which type of response is the root exhibiting?
(A)  negative gravitropism
(B)  negative phototropism
(C)  positive gravitropism
(D)  positive phototropism

▶️Answer/Explanation

Ans : C

Question

The graph shows the pulse rate over a period of time.
At which point is adrenaline released into the blood?

▶️Answer/Explanation

Ans : A

Question

The graphs show the pupil diameter and heart rate of a person over a period of 30 minutes. The person was given an unexpected shock at one point during the 30 minutes.

At which time did the person experience a shock causing them to release adrenaline?
(A)  5 minutes
(B)  10 minutes
(C)  15 minutes
(D) 25 minutes

▶️Answer/Explanation

Ans: D

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