BIOMOLECULES AND ENZYMES

Detailed explanation-1: -The plant hormone auxin is well known to stimulate cell elongation via increasing wall extensibility. Auxin participates in the regulation of cell wall properties by inducing wall loosening. Here, we review what is known on cell wall property regulation by auxin.

Detailed explanation-2: -Gibberellins are growth hormones having gibbane ring structure, which causes cell elongation of intact plants. Thus gibberellins promote cell elongation in roots, shoots and leaves of a plant.

Detailed explanation-3: -Auxin causes the elongation of stem and coleoptile cells by promoting wall loosening via cleavage of these bonds. This process may be coupled with the intercalation of new cell wall polymers.

Detailed explanation-4: -Answer: Auxin promotes cell growth and elongation of the plant. In the elongation process, auxin alters the plant wall plasticity making it easier for the plant to grow upwards.

Detailed explanation-5: -Auxins are a powerful growth hormone produced naturally by plants. They are found in shoot and root tips and promote cell division, stem and root growth. They can also drastically affect plant orientation by promoting cell division to one side of the plant in response to sunlight and gravity.