What is the general name of chemical substances which bring about control and coordination in plants?

Open in App

Solution

The general name of the chemical substance, which bring about control and coordination of plants is called plant hormones or Phytohormones. Some examples are:

1. Auxins - Help in the growth of root & shoot tips.

2. Gibberellins - Help in vegetative growth.

3. Cytokinins - Promote cell division.

4. Abscisic acid - Inhibits growth & causes wilting (falling) of fruits and leaves.

Suggest Corrections

Similar questions

Q. Name the type of chemical substances that control the growth in plants.

Chemical messengers responsible for control and coordination in plants and animals are:

A chemical substance P is made and secreted by the meristematic tissue at the tip of the stem (or shoot) of a plant. The chemical substance P is responsible for a phenomenon Q in plants in which the stem bends towards a source of light. The same chemical substance P has an opposite effect on the root of a plant. It causes the root of a plant to bend away from the source of light in a process called R.

(a) What is the chemical substance P?

(b) State, whether P prefers to, remains in the sunlight side of a stem or in shade.

(d) What is the name of process (i) Q and (ii) R?

(e) What is the general name of chemical substances like P? Name another substance which belongs to this class of chemical substances.

Chemical messengers responsible for control and coordination in plants and animals are called ___

Q. In plants, the chemical control is brought about by

Join BYJU'S Learning Program