Fick's Law of Diffusion States That the Rate of Diffusion

Multiple Choice

Fick's law of diffusion states that the rate of diffusion of a gas across a membrane depends on all of the following except

A) the membrane surface area.
B) the concentration difference of the gas on the two sides of the membrane.
C) the width of the membrane.
D) the size of the gas molecule.
E) which membrane transport proteins are present.