Question

name the harmone which is secreted when growing plants detect light .mention its site of secretion in a plant

Answer 1

When growing plants detect light a hormone called auxin is 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.

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Answer 2

Ans -----auxin....... and it is synthesised at shoot tip