According to Fick's law of diffusion, which of the following changes would decrease the rate of net diffusion of "X" across a membrane?
A) an increase in the X's concentration gradient
B) an increase in the permeability of the membrane to X
C) an increase in the surface area of the membrane
D) an increase in the thickness of the membrane
E) a decrease in the size of X

Question

Quizplus · Accepted Answer

According to Fick's law of diffusion, the rate of net diffusion is directly proportional to the concentration gradient, the permeability of the membrane, and the surface area of the membrane, and inversely proportional to the thickness of the membrane and the size of the diffusing molecule. Therefore, an increase in the thickness of the membrane would decrease the rate of net diffusion of X across the membrane.

According to Fick's Law of Diffusion, Which of the Following