Answers

2015-09-06T05:57:25+05:30
When one side of the plant is facing the sun , the auxin diffuses in the other pat of the sun  where sun light is not falling .thus, cells where auxin diffuses grows larger bending the stem towards sun light.
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2015-09-06T10:05:21+05:30
Auxin synthesis on the side of the plant which is away from the source of light and causes cell elongation . Thus plant appear to bend on one side.
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