Question

What is geotropism?

Answer 1

Tropic movements:

1. Tropisms are the directional movement that occurs in response to a directional stimulus.
2. Depending on the stimulus types, the tropic movements are classified as geotropism, phototropism, chemotropism, hydrotropism, and thigmotropism.

Geotropism:

1. It is a tropic movement in response to gravity.
2. It is also called gravitropism.
3. Positive geotropism occurs when plant organs develop in the direction of gravity.
4. Example - The growth of roots towards gravity.
5. Negative geotropism occurs when organs grow in the opposite direction of gravity.
6. Example - The upward growth of stem against gravity.