Question

name the plant growth hormone which is synthesized at shoot tip.explain briefly why does a plant should bend towards light during its growth

Answer 1

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The plant hormone which is synthesised at the shoot tips is auxins. When growing plants detect light, hormone auxin, synthesised 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.This concentration of auxin stimulates the cells to grow longer on the side of the shoot which is away from light. Thus, the plant appears to bend towards light.