Question

Describe the various movements of plants giving suitable examples.

Answer 1

1. Movement independent of growth: Growth is not involved in this movement. Eg. Movement of Mimosa.

2. Movement-dependent on growth: Growth is involved in this movement.

a. Phototropism -Response of the plant in the direction of light. Eg. Stem

b. Geotropism - Response of the plant in the direction of gravitational force. Eg. Root

c. Hydrotropism - Response in the direction of water .Eg. Root

d. Chemotropism - Response in the direction of chemicals .Eg. The growth of Pollen Tube