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How do auxin promote the growth …

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How do auxin promote the growth of a tendril around a support??

Posted by Affu 😊 6 years, 4 months ago

CBSE > Class 10 > Science

2 answers

Anureet Kaur 6 years, 4 months ago

when tip off tendril touch support than the auxin hormone present in its steps move to that side of tip which is away from support as auxin promote growth the side away from support grows faster than the side away from support. This makes tendril curve toward supports

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Anureet Kaur 6 years, 4 months ago

Auxin is present in tips stem and roots and prefer to stay in shade. As light falls on stem, auxin gets concentrated on the side of stem which is away from light. Auxin promotes growth the, shady side of stem grows longer than the side facing the sun. This stem bends toward ?light

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CBSE > Class 10 > Science