The movement of auxin in plants is said to be "polar," which means that auxin
A) is a chemically polar molecule.
B) is produced only in one part of the plant.
C) is primarily transported in only one direction in the plant.
D) moves in a direction away from the light.
E) cannot move through gelatin unless it is bound to a polar molecule.

Question

Quizplus · Accepted Answer

The word "polar" in this context refers to the fact that auxin transport occurs primarily in one direction in the plant, from the shoot apex towards the base. This directional transport is key in plant growth and development. Choices A, B, D, and E are all incorrect, as they do not accurately describe the movement of auxin.

The Movement of Auxin in Plants Is Said to Be