Question

How does phototropism occur in plants?

Answer 1

hey mate..
here is ur answer..

Phototropism is the growth of an organism which responds to a light stimulus. It is most often observed in plants, but can also occur in other organisms such as fungi. The cells on the plant that are farthest from the light have a chemical called auxin that reacts when phototropism occurs. This causes the plant to have elongated cells on the farthest side from the light. 
hope it's help u mark it as brainlesit

Answer 2

Due to the release of more phytohormone Auxin on the shady side which causes unequal growth on both the sides and thus making the part curve is known as phototropism

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