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ion concentration

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Which of the following is responsible for maintaining the difference in ion concentration across the membrane of a nerve cell?


here are choices

the sodium-potassium pump
the action potential
the depolarization of the membrane
the ion channels in the membrane


I think it is the sodium-potassium pump. Am I correct?


http://en.wikipedia.org/wiki/NaKATPase

The sodium-potassium pump...three NA in, two K out causes difference in ion concentration.

  • ion concentration -

    you are correct

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