Which Ion(s)have a Net Chemical Force Acting to Move the Ion(s)into

Multiple Choice

Which ion(s) have a net chemical force acting to move the ion(s) into the cell? (Assume a resting membrane potential (Vm) of - 70mV.)

A) X+, whose [ECF] is 120 mM and [ICF] is 30 mM
B) A- , whose [ECF] is 100 mM and [ICF] is 100 mM
C) B- , whose [ECF] is 140 mM and [ICF] is 30 mM
D) both X+ and B- ions
E) X+, A- , and B- ions