The curvature of shoot due to auxins during phototrophic movements occurs ______________.

Behind the shoot tip

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Shady side of the shoot

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Far away from the shoot tip

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None of these

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Solution

The correct option is B
Shady side of the shoot

Auxin is a plant hormone synthesised at the actively growing tips. When growing plants detect light, auxin diffuses towards the shady side of the shoot and promotes growth. So, now more cells grown and divide on the shady side, causing the plant to bend towards light due to the weight of growth.

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