EVERYDAY SCIENCE

Detailed explanation-1: -A type of plant hormone that promotes cell division in plant roots and shoots is called cytokinins. It is synthesized in the apices of roots and developing shoot buds where rapid division occurs.

Detailed explanation-2: -Cytokinins are plant hormones which promotes cytokinesis or cell division. It also helps in opening of stomata, delaying ageing in leaves, etc.

Detailed explanation-3: -Auxin and cytokinin are the two growth hormones that favour cell division and differentiation. Auxin promotes root development, cell division and differentiation of xylem. Cytokinins promote cytokinesis which means a division of cells and are generally secreted in the areas where rapid cell division occurs.

Detailed explanation-4: -Cytokinin is generally considered to promote mitotic cell division in the shoot, but differentiation and transition to the endocycle in the root.