If the neural membrane allowed sodium ions to move freely, the resting potential of a neuron would be approximately _________mV.
A) -70
B) -65
C) 10
D) 60

Question

Quizplus · Accepted Answer

The resting potential of a neuron is maintained by a higher concentration of sodium ions outside the cell and potassium ions inside the cell. If the neural membrane allowed sodium ions to move freely, there would be an equalization of sodium concentration inside and outside the cell, leading to a resting potential of approximately +60mV (the equilibrium potential for sodium ions).

If the Neural Membrane Allowed Sodium Ions to Move Freely