Question

Difference between chemotactic and chemotropic movement

Answer 1

Chemotactic: movement toward the chemicals without growth eg. Movements of leucocytes in our body

Chemotropic: movement with growth eg. Movement of pollen tube toward the micropylar end due to chemical secretion of synergid cell!

Answer 2

The difference between chemotactic and chemotropic moment is as follows:

Chemotactic moment:

1. Chemotactic moment is the moment of an organism with respect to the chemical signals or stimulus received.

2. Mostly animals and microbes show this type of a moment.

3. Example: Moment of a tiger in response to blood smell.

Chemotrophic moment:

1. Chemotrophic moment is the growth of an organism towards the chemical stimulus or signals received.

2. Mostly plants show this moment.

3. Growth of plants in the direction of sunlight.