Explain the cause of shoots of the plant...

Explain the cause of shoots of the plants bending towards light.

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Stems are positively photoropic and bend towards the direction of light. The movement is due to occurrence of more auxin on the darker side and lesser auxin on the illuminated side. Thus there is more growth on the darker side which causes the stem to bend towards light.

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Explain the cause of shoots of the plants bending towards light.

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