Question

how does phototropism occur in plants?
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Answer 1

Phototropism is a tropic movement in plants which a plant shows in response to a light source. It occurs when the plant hormone auxin moves towards the shady part of the stem away from the part which gets light causing more growth in the direction of light.

Answer 2

Explanation:

Phototropism is the growth of an organism in response to a light stimulus. Phototropism 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.