NEET BIOLOGY

Detailed explanation-1: -Cytokinin are adenine derivatives. They are a group of plant growth regulators which are primarily involved in performing cell division in plant roots, shoot system. This hormone helps in promoting the cell’s growth, development, differentiation, affecting apical dominance and delay in leaf senescence.

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: -Several hormones other than auxin are known to enhance cambial cell division activity. These include cytokinin (CK), gibberellin (GA), and ethylene.

Detailed explanation-4: -Auxin (indole-3-acetic acid, IAA), produced in young shoot organs, promotes root development and induces vascular differentiation.

Detailed explanation-5: -Auxin promotes cell division and meristem maintenance and also plays an important role in the establishment of cellular patterning. Plant development thus integrates the regulation of cell proliferation and growth with further cell expansion and differentiation.