PHYSIOLOGY
NEUROTRANSMISSION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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After hyper-repolarization, the sodium-potassium pump uses passive transport to move sodium and potassium to their original position outside and inside respectively. This results in regaining the resting membrane potential and another action potential can occur.
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True
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False
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Either A or B
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None of the above
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Explanation:
Detailed explanation-1: -The sodium-potassium pump moves three sodium ions out of the cell for every two potassium ions it moves into the cell continuously. It, therefore, maintains the large potassium ion gradient across the membrane, which in turn provided the basis for resting membrane potential.
Detailed explanation-2: -The sodium-potassium pump carries out a form of active transport-that is, its pumping of ions against their gradients requires the addition of energy from an outside source.
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