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Write a short note on gibberellins |
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Answer» Answer: Gibberellins are a GROUP of plant hormones responsible for growth and development. Chemically speaking, gibberellins are actually ACIDS. They are produced in the plant cell's plastids, or the double membrane-bound organelles responsible for making food, and are eventually transferred to the ENDOPLASMIC reticulum of the cell, where they are MODIFIED and prepared for use. Functions: Gibberellins are growth hormones that stimulate cell elongation and cause plants to grow taller. Gibberellins also have a role in other plant processes, such as stem elongation, germination, flowering, and fruit ripening. In humans, the pituitary gland secretes the human growth HORMONE at appropriate times; the plastids of a plant secrete gibberellin in a similar fashion. |
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