Why do coleoptiles grow toward light?
A) Auxin is destroyed by light.
B) Gibberellins are destroyed by light.
C) Auxin synthesis is stimulated in the dark.
D) Auxin moves away from the light to the shady side.
E) Gibberellins move away from the light to the shady side.

Question

Quizplus · Accepted Answer

Auxin, a plant hormone, redistributes to the shady side of the plant when exposed to light. This uneven distribution causes the cells on the darker side to elongate more than those on the light-exposed side, leading to the plant bending towards the light.

Why Do Coleoptiles Grow Toward Light