During an Action Potential, Activation Gates in Voltage-Gated Na⁺ Channels

question 63

Multiple Choice

During an action potential, activation gates in voltage-gated Na⁺ channels close rapidly, but there is a delay in the reopening of their inactivation gates.This contributes to the

• A) decrease in K⁺ concentration.
• B) threshold.
• C) graded potential.
• D) refractory period.
• E) resting potential.

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