The Depolarization Phase of an Action Potential Requires

question 37

Multiple Choice

The depolarization phase of an action potential requires

• A)opening of K⁺ channels in the membrane.
• B)opening of Na⁺ channels in the membrane.
• C)a K⁺ concentration gradient across the membrane.
• D)a Na⁺ concentration gradient across the membrane.
• E)both B and D

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