If the permeability of sodium ions increases in an axon,
A)the membrane potential will depolarize.
B)the membrane potential will hyperpolarize.
C)inward movement of sodium ions will increase.
D)outward movement of sodium ions will decrease.
E)both the inward movement of sodium ions will increase and the membrane potential will depolarize.

Question

Quizplus · Accepted Answer

When the permeability of sodium ions increases in an axon, more sodium ions move into the cell, causing the membrane potential to become less negative (depolarize). This is because sodium ions are positively charged, and their increased inward movement contributes to depolarization.

If the Permeability of Sodium Ions Increases in an Axon