Which Causes the Rapid Change in the Resting Membrane Potential

question 13

Multiple Choice

Which causes the rapid change in the resting membrane potential that initiates an action potential?

• A) Potassium gates open, and potassium rushes into the cell, changing the membrane potential from negative to positive.
• B) Sodium gates open, and sodium rushes into the cell, changing the membrane potential from negative to positive.
• C) Sodium gates close, allowing potassium into the cell to change the membrane potential from positive to negative.
• D) Potassium gates close, allowing sodium into the cell to change the membrane potential from positive to negative.

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