When a substance crossing the membrane is driven by diffusion, the net flux of that molecule can be described mathematically by

Question

Quizplus · Accepted Answer

Fick's law describes the diffusion process, stating that the rate of transfer of a substance across a unit area is proportional to the concentration gradient. This law is fundamental in explaining how substances move down their concentration gradients across membranes.

When a Substance Crossing the Membrane Is Driven by Diffusion