Biology, asked by vemulathanusri28, 2 months ago

what is phototropism ?

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Answered by chirags1725

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. This causes the plant to have elongated cells on the furthest side from the light. Phototropism is one of the many plant tropisms or movements which respond to external stimuli. Growth towards a light source is called positive phototropism, while growth away from light is called negative phototropism

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Answered by 7976manishakumari

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