ExpertEasy1 markMultiple Choice
AQA GCSE · Question 03.1 · Homeostasis and Response
A plant shoot responds to the stimulus of light shining on it from one side. What name is given to the type of response shown by the plant shoot?
A plant shoot responds to the stimulus of light shining on it from one side. What name is given to the type of response shown by the plant shoot?
Answer options:
A.
Adaptation
B.
Homeostasis
C.
Tropism
How to approach this question
Consider the definitions of the terms provided. The question describes a plant's directional response to a stimulus (light). Identify the specific biological term for this type of response.
Full Answer
C.Tropism✓ Correct
A tropism is a growth response of a plant towards or away from a stimulus. When the stimulus is light, it is called phototropism. Since the plant shoot is responding to light from one side, this is an example of a tropism.
Common mistakes
✗ Confusing tropism with homeostasis. Homeostasis is about maintaining internal conditions, while tropism is a growth response to an external stimulus.
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