Question

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

Answer 1

Auxins promotes the growth of tendrils around a support because it usually synthesized in young tip of root and shoot helping them to grow longer.
Hope this will be helpful :)

Answer 2

Tendrils are sensitive to the touch of other objects. Tendrils have cells which can sense their contact with a nearby solid object. So when a tendril touches an object, then the side of tendril in contact with the object grows slowly then its other side. This causes the tendril to bend towards the object by growing towards it, wind around the object and cling to it..... Hope this helps u...!!!!
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