-If the membrane represented in the graph was stimulated in the presence of a drug that specifically inhibits sodium channels,the membrane would
A)not depolarize.
B)depolarize for one stimulus but not for a second stimulus.
C)depolarize but not repolarize.
D)repolarize only to the threshold potential.
E)become permanently hyperpolarized.

Question

-If the membrane represented in the graph was stimulated in the presence of a drug that specifically inhibits sodium channels,the membrane would
A)not depolarize. 
B)depolarize for one stimulus but not for a second stimulus. 
C)depolarize but not repolarize. 
D)repolarize only to the threshold potential. 
E)become permanently hyperpolarized.

Quizplus · Accepted Answer

Depolarization of a membrane is primarily driven by the influx of sodium ions (Na+) through sodium channels. If a drug specifically inhibits these channels, sodium ions cannot enter the cell, preventing depolarization.

-If the Membrane Represented in the Graph Was Stimulated in the Presence