Each Voltage-Gated Na+ Ion Channel Has Two Voltage Sensitive Gates

question 108

Multiple Choice

Each voltage-gated Na+ ion channel has two voltage sensitive gates: an activation gate and an inactivation gate.Which of the following would occur during depolarization?

• A)Activation gates are open; inactivation gates are closed.
• B)Activation gates are closed; inactivation gates are open.
• C)Both activation and inactivation gates are open.
• D)Both activation and inactivation gates are closed.
• E)None of these events occurs during depolarization.

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