BIOMOLECULES AND ENZYMES

Detailed explanation-1: -The plant hormone auxin is well known to stimulate cell elongation via increasing wall extensibility.

Detailed explanation-2: -In the shoots, auxin stimulates cell elongation and thus high concentrations of auxin promote growth (cells become larger) In the roots, auxin inhibits cell elongation and thus high concentrations of auxin limit growth (cells become relatively smaller)

Detailed explanation-3: -Auxin is a plant growth hormone that causes cell elongation and regulates the growth of the shoot.

Detailed explanation-4: -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.

Detailed explanation-5: -Auxins function primarily in stem elongation by promoting cell growth. Indole-3-acetic acid (IAA) is the major naturally occurring auxin and one of the major growth factors in plants. They were the first group of plant growth hormones discovered. Auxins serve dual roles in plants depending on where they are produced.