Question

Differentiate between the following pairs on the basis of what is mentioned within the bracket.

Phototropism and Geotropism (Growth of root and shoot).

Answer 1

Phototropism:

1. Phototropism refers to the curvature movement or growth of plant parts in response to light stimuli.

Geotropism:

1. Geotropism or gravitropism refers to the curvature movement or growth of plant parts in response to the force of gravity.

Final Answer:

Phototropism	Geotropism
The shoots of the plant show positive phototropism. They grow towards the source of light.	The roots of the plant show positive geotropism. They grow in the direction of gravitational force.
Plant roots show negative phototropism. They do not grow in the direction of light.	Plant shoots show negative geotropism. They do not grow in the direction of gravitational force.