AQA Plant Hormones

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  • Created by: tt09812
  • Created on: 08-02-21 18:19
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  • Plant Hormones
    • Auxins are a plant hormone.
    • Auxin is produced in the tips and moves backwards to stimulate cell elongation process which occurs in the cells behind the tips.
    • When a shoo tip is exposed to light more auxin accumulates on the side that's in the shade than the side that's in the light.       This makes the cell grow faster on the shaded side so the shoot bends towards the light.
    • When a shoot grows sideways, gravity produces an unequal distribution of auxin in the tip, with more auxin on the lower side. Lower side grows faster and bends the shoot upwards. A root growing sideways has more auxin on the lower side.

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