NEET 2015 Biology Cancelled Paper

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Question : 41 of 90

Marks: +1, -0

What causes a green plant exposed to the light on only one side, to bend toward the source of light as it grows ?

[NEET 2015 C]

Green plants seek light because they arephototropic
Light stimulates plant cells on the lighted side to grow faster
Auxin accumulates on the shaded side,stimulating greater cell elongation there.
Green plants need light to perform photosynthesis

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