Refer to the Figure Below

Multiple Choice

Refer to the figure below. Areas A and B are separated by a membrane that is permeable to a substance X.Which set of conditions will result in the greatest rate of diffusion of X into area A?

A) The concentration of X in A is 5 mM; the concentration of X in B is 1 M.
B) The concentration of X in A is 10 mM; the concentration of X in B is 2 M.
C) The concentration of X in A is 50 mM; the concentration of X in B is 60 mM.
D) The concentration of X in A is 200 mM; the concentration of X in B is 250 mM.
E) The concentration of X in A is 1 M; the concentration of X in B is 500 mM.