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Q.

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

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a

The plant needs light for photosynthesis

b

Auxin accumulates on the shaped side to induce great cell elongation on that side

c

Light reduces length

d

The apices of the stems are attached by light

answer is C.

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Detailed Solution

Auxin accumulates on the shaped side to induce great cell elongation on that side so the green plant bends towards the source of light when exposed to the light on only one side.

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