Question

Which of the following is NOT a characteristic of cardiacmembrane depolarization / polarization leading to generation of theaction potential?

a. The presence of a large amount of negative charges inside thecell creates a negative resting potential

b. There is a large amount of potassium inside the cells and alot of sodium outside, creating a membrane potential, which causesopening of Na and K channels, beginning membrane depolarization

c. Along with Na, a large amount of Cl ions also enter thecells, further creating a negative membrane potential

d. In order to restore the resting potential, a Na/K ATPAseremoves 3 Na for every 2 K it takes in from the cytosol, leavingless positive charges inside the cell, returning to a negativepotential