Question

Write short notes on:
Geotropism in plants

Hint:

Geotropism helps roots anchor plants in soil and absorb nutrients while guiding shoots towards light.

Answer 1

Geotropism (also known as gravitropism) is the directional growth of plants in response to gravity. The roots of plants exhibit positive geotropism by growing downward towards gravity, while the shoots exhibit negative geotropism by growing upwards, away from gravity. This movement is controlled by the plant hormone auxin, which redistributes in response to gravitational force.
Example: The roots of a germinating seed always grow downward into the soil, whereas the shoot grows upward towards light.