BIOMOLECULES AND ENZYMES

Detailed explanation-1: -Gibberellins promote growth in different ways. These hormones are mainly involved in controlling and promoting stem elongation, flowering, and leaf expansion as well as seed germination. They are used in suspension cultures to enhance the growth of cells.

Detailed explanation-2: -Gibberellins are plant growth regulators that facilitate cell elongation, help the plants to grow taller. They also play major roles in germination, elongation of the stem, fruit ripening and flowering.

Detailed explanation-3: -(i) In light, hormone auxin, helps the cells to grow longer in plants. (ii) Plant hormone gibberellins help in growth of a stem.

Detailed explanation-4: -As per evidence, gibberellins enhances stem-growth especially when put on to the whole plant. These are also responsible for elongation of rosette plants such as lettuce upon exposure to some environmental stimuli, for instance, long periods of exposure to daylight.