Question

Explain the various movements in plants due to growth.

Answer 1

In plants two types of movements take place:

1. Tropic movements and
 2. Nastic movements
phototroplsm
 The movement of a part of the plant towards light is called phototropism. Growth of aerial parts of a plant towards light is an example of phototropism.

2.geotropism

The movement of a part of the plant towards gravity is called geotropism. Growth of roots of plants in downward direction is an example of geotropism.
3. hydrotropism

The movement of a part of the plant towards water is called hydrotropism, e.g., movement of roots.

4.chemotropism

The movement of a part of the plant towards a chemical is called chemotropism.During the process of fertilization the movement of pollen tube towards ovule due to secretion of a sugary chemical in the ovary is an example of chemotropism

Answer 2

Here is ur ans..........