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

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Chapter 6

NCERT

Class 10

Science

Solutions

4. How do auxins promote the growth of a tendril around a support?

Question:

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

Answer:

The tendrils are sensitive to touch. As the tendril comes in contact with a base, the auxin diffuses out and moves to that side. Due to this the cells elongate and the tendril is twisted and wrapped around the base.