science
Grade-4-
Easy
Question
Response to gravity is called:
- Geotropism
- Hydrotropism
- Phototropism
- None of the above
Hint:
The other name is gravitropism.
The correct answer is: Geotropism
The correct option is a) Geotropism.
Geotropism can be defined as the response of plant to gravity as stimulus. The response can be either negative or positive. In positive geotropism the plant grows towards gravitational pull and in negative geotropism the plant or its part grows in the opposite direction to gravitational pull.
The best example of positive geotropism is the growth of roots towards gravity and of negative geotropism is the growth of stem away from it.
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