Which of the Following Events Is NOT a Characteristic of an Action

question 148

Multiple Choice

Which of the following events is NOT a characteristic of an action potential?

• A)The plasma membrane becomes highly permeable to sodium ions and depolarization results.
• B)As sodium ions enter,the inside of the plasma membrane becomes more negative.
• C)At the peak of depolarization,sodium channels begin to close and potassium channels open.
• D)In repolarization,potassium ions flow out of the cell.
• E)Action potentials occur according to the all-or-none principle.

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