Question

how do auxins promote the growth of tendril around a support?

Answer 1

Auxins are growth hormones. They are present at the tip of the tendril. The growth is slowed down when the tendrils are attached around any support because auxins are sensitive to touch and they move to the tip on the side away from the support. Due to presence of auxins on the other side (away from the support), the other side grows faster than the side of tendril in contact with the support and the tendril bends towards the support.

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Answer 2

HEY FRIEND HERE IS UR ANSWER ,

Auxins are the plant hormones produces at the tip of a shoot and root. Auxins are present at the tip of tendrils. When tendrils are attached around any support their growth is slowed down as auxins are sensitive to touch. This make them move to the other side of the tip to get support this makes the other side grow faster than the side of tendril in contact with the support and the tendril bends towards the support.

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