Answer:
A hormone is any chemical produced in one part of the body that has a target Auxins promote stem elongation, inhibit growth of lateral buds (maintains Auxin is a plant hormone produced in the stem tip that promotes cell elongation. However, plants must take up various minerals through their root systems for use.
Auxin will build up on the lower side of the root and stimulate cell growth.
Hope it helps,
I'm not so sure.