Shoots of plant show upward movement and it can be designated to be

by

Shoots of plant show upward movement and it can be designated to be

Negatively phototropic
Positively chemotropic
Positively hydrotropic
Negatively geotropic
This question was previously asked in
UPSC NDA-2 – 2021
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The upward movement of plant shoots is a response to gravity. Since gravity pulls downwards, movement upwards is against the direction of gravity. This response to gravity is called gravitropism (or geotropism).
Plant shoots typically exhibit negative gravitropism (growing away from gravity) and positive phototropism (growing towards light). The question asks about the upward movement, which is primarily defined relative to the gravitational pull.
Positive gravitropism is seen in roots, which grow downwards into the soil. Phototropism is the growth of a plant in response to a light stimulus. Chemotropism is movement in response to chemicals, and hydrotropism is movement in response to water.

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