Question

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

Answer 1

..auxin ..is present in the ..tips of the roots nd shoot of the plant ...the ..shoots always show ..positive ..phototropism nd the ..roots ..always show the negative phototropism the ..auxin which is present on the shoots of the plants bends in tbe ..direction of the sunlight ..showing +ve phototropism thus ..making it ..dependable on the fellow support the side ..on which the sunlight dosent reach gets ...dependable .on something else .. nd then the cycle reverses nd the part ..which didnt reciecved the sunlight ..now ..recieve it ..nd ..the part ..which recieved it get ..bend ..agin ...nd in this way ..tbe auxin helps the growth of the tendril around a support

Answer 2

Explanation:

Auxin is a plant growth hormone. When the tip of the tendril touches a support, then the auxins present on its tip moves to the side of tip which is away from the support, so, due to more auxins in its tendrils away from the support grows faster.