What causes plants to respond positively to sunlight?

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asked Feb 21, 2018 171k views

2 Answers

Abelyao · Answer 1 · 2018-02-22T11:22:44+0000

Auxin causes plants to respond positively to sunlight because these are chemicals in plants that are far from a light resource, which causes the plant to bend towards the sun.

SimonRH · Answer 2 · 2018-02-27T09:41:32+0000

Auxin. Cells on the plant that are farthest from a light source have a chemical called auxin cause the cells to elongate. The plant bends towards the light.

What causes plants to respond positively to sunlight?

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