Question

Explain any two type of tropic movement?

Answer 1

Answer:

Hydrotropism -

The movement of plant organs in response to moisture is termed as hydrotropism.

Roots grow towards the source of moisture and hence are positively hydrotropic.

An uninterrupted supply of water to the plant is ensured.

Gravitropism -

The movement of plant organs in response to gravity is termed as gravitropism.

Roots are positively gravitropic since they grow into the soil.

The shoot grows upwards (against gravity) and hence is negatively geotropic.