Question

What is a plant hormone? Name four plant hormones. State one function of each.

Answer 1

Plant hormones:

• The chemicals that perform the function of control and coordination in plants are called plant hormones.
• The four plant hormones and their functions are as follows:

1. Auxin: It promotes cell enlargement and cell differentiation in plants.
2. Gibberellins: It breaks the dormancy in seeds and buds.
3. Cytokinins: It promotes cell division in plants.
4. Abscisic acid: It promotes the closing of stomata.