Name the following :

(a) Hormone that stimulates growth by cell-division.

(b) Growth retarding hormone in plants.

(c) Main auxin found in most plants.

Ans

(a) Cytokinins

Cytokinins are found in sites of active cell division in plants—for example, in root tips, seeds, fruits, and leaves. They are transported in the xylem and work in the presence of auxin to promote cell division.

(b)Growth retarding hormones- Abscisic acid and Ethylene

(c) The main auxin found in most plants is indole-3-acetic acid (IAA)