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how does the relative permeability of the membrane to na...

Question: how does the relative permeability of the membrane to na...

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How does the relative permeability of the membrane to Na+ and K+ throughout the course of the action potential change compared with that at the resting membrane potential?

From the following, select the statement which is most CORRECT:

Select one:

a. At rest the neuronal membrane is much more permeable to K+ ions compared to Na+ ions. This is because there are far more K+ leak channels when compared to those for Na+ ions.

b. For every 1 K+ voltage-gated channel open at rest, there are roughly 1185 open during the peak of an action potential.

c. The number of potassium voltage-gated channels that open determine the amplitude of the action potential.

d. During the peak of an action potential, there is a 500× increase in the concentration of Na+ ions that move into the cell.

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Question: how does the relative permeability of the membrane to na...

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