A green plant bends towards the source of lig | vedclass

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(C) The phenomenon described is phototropism. When a plant is exposed to light from one side,the hormone auxin (indole$-3-$acetic acid) migrates to th

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Some auxins accumulate on the shaded side to induce greater cell elongation on that side.

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(C) The phenomenon described is phototropism. When a plant is exposed to light from one side,the hormone auxin (indole$-3-$acetic acid) migrates to the shaded side of the stem. Auxin promotes cell elongation. As a result,the cells on the shaded side grow longer than those on the illuminated side,causing the stem to bend towards the light source.

$A$ green plant bends towards the source of light when exposed to light on only one side. Which of the following is the best explanation for this phenomenon?

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