Which of the following choices would result in the greatest flow of ions across the membrane? A) a large V_m B) a large number of closed ion channels C) a large membrane resistance D) a small difference in ion concentrations across the membrane

Question

Quizplus · Accepted Answer

The equation for ion flow across a membrane is determined by the voltage difference (V), the membrane resistance (R), and the difference in ion concentrations (C): Ion flow = V/RxC Therefore, a larger voltage difference (V_m) would result in a greater flow of ions across the membrane, assuming the same membrane resistance and ion concentration difference. The number of closed ion channels and membrane resistance would decrease the flow of ions, while a small difference in ion concentrations would decrease the driving force for ion flow.

Which of the Following Choices Would Result in the Greatest