Which of the Following Statements About the Action Potential Is

question 158

Multiple Choice

Which of the following statements about the action potential is false?

• A) The rapid depolarization phase is caused by the entry of potassium ions.
• B) During the repolarization phase, sodium channels close and potassium channels open.
• C) In the after- hyperpolarization phase, membrane potential approaches the potassium equilibrium potential.
• D) During the depolarization phase, membrane potential becomes positive.
• E) None of these statements is false-all are true.

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