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How do auxins help in bending of stem to...

How do auxins help in bending of stem towards light ? Explain.

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When growing plants detect light, hormone celled auxin, synthesized at the shoot tip helps the cells to grow longer. When light is coming from one side of the plant, auxin diffuses towards the shady side of the shoot which is away from light. Thus, plant appears to bend towards light.
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Knowledge Check

  • Plant bends towards the light because

    A
    they need light for photosynthesis
    B
    they need light for respiration
    C
    light attract them
    D
    cell on the shaded side elongate more

  • Plant bends towards the light because

    A
    they need light for photosynthesis
    B
    they need light for respiration
    C
    light attract them
    D
    cell on the shaded side elongate more

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