When Transporting Charged Molecules Across a Membrane, Which of the Following

Multiple Choice

When transporting charged molecules across a membrane, which of the following is/are TRUE?

A) Keq is always equal to zero.
B) When moving chloride ions in nerve cells, the movement is with both concentration and electrochemical gradients.
C) OG° is always equal to one.
D) Membrane potential is not a factor.
E) OG is dependent on electrochemical potential.