Jena Is Reviewing Her Notes on Action Potentials for a Quiz

question 30

Multiple Choice

 Jena is reviewing her notes on action potentials for a quiz. She makes an extra notation that before the action potential when the neuron is at rest, sodium channels _____.

• A) are open and allow sodium ions to flow through easily
• B) are closed and don't allow sodium to pass through.
• C) are partially open, so sodium leaks through slowly
• D) are partially open but at equilibrium, so the sodium doesn't move

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