What describes the movement of substances down their concentration gradients?
A)Bulk transport
B)Active transport
C)Saturation
D)Diffusion

Question

Quizplus · Accepted Answer

The movement of substances down their concentration gradients is described as diffusion. Bulk transport and active transport refer to movements of substances against their concentration gradients, while saturation refers to the point at which transporters become completely occupied and unable to transport any more molecules.

What Describes the Movement of Substances Down Their Concentration Gradients