At the Peak of an Action Potential

question 147

Multiple Choice

At the peak of an action potential,

• A)the diffusion of Na+ through voltage-gated channels ceases
• B)the concentration gradient for K+ promotes the movement of this ion out of the cell
• C)K+ permeability greatly increases
• D)the electrical gradient promotes the diffusion of K+ out of the cell
• E)all of the above are true

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