What Causes the Rapid Change in the Resting Membrane Potential

question 23

Multiple Choice

What 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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