briefly explain the role of auxin, cytokinesis, gibemileins and abcissica acid in plants
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Xylem and transport | Guard cells regulate transpiration | Transportation and storage of nutrients
Plants respond to external stimuli | Plant secondary compounds | Links
A hormone is any chemical produced in one part of the body that has a target elsewhere in the body. Plants have five classes of hormones. Animals, especially chordates, have a much larger number. Hormones and enzymes serve as control chemicals in multicellular organisms. One important aspect of this is the obtaining of food and/or nutrients
Auxins | Back to Top
Auxins promote stem elongation, inhibit growth of lateral buds (maintains apical dominance). They are produced in the stem, buds, and root tips. Example: Indole Acetic Acid (IA). Auxin is a plant hormone produced in the stem tip that promotes cell elongation. Auxin moves to the darker side of the plant, causing the cells there to grow larger than corresponding cells on the lighter side of the plant. This produces a curving of the plant stem tip toward the light, a plant movement known as phototropism.
Answer: Auxin promotes stem elongation.
1. cytokinesis promotes the division of cell into two daughter cells.
2. gibberellins promotes the growth of hormones that stimulates cell enlongation and help plants grow taller.
abcissic acid helps in development processes ,the control of organ size and stomatal closure.
done.
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