Question

Which plant growth hormones are highly required for cell growth?

Answer 1

The plant hormones cytokinin, auxins, and gibberellins promote cell division, controlling many developmental processes in plants.

Explanation :

Cytokinin:

1. Cytokinin hormone is a plant growth regulator that primarily controls cell division and growth in the plant's meristematic areas.
2. It is created in the shoots and roots of plants, where active development occurs in the form of leaves, buds, branches, flowers, and fruits.
3. The primary role of cytokinins is to govern cell division, growth, differentiation, and development, among other things.
4. This hormone is in charge of leaf aging, axillary growth, and apical dominance.

Auxins:

1. Auxin is a potent growth hormone that plants naturally make.
2. Auxins are located in the plant's shoot and root tip to encourage cell proliferation, and stem and root development.
3. It significantly alters plant orientation by increasing cell development on one side of the plant in response to sunlight and gravity.

Gibberellins:

1. Gibberellins (GAs) are plant hormones that regulate developmental processes such as stem elongation, germination, seed dormancy, blooming, flower expansion, and leaf and fruit senescence.
2. Gibberellins are one of the oldest plant hormone groups.