February 22, 2017

Homework Help: ion concentration

Posted by alyssa on Sunday, November 26, 2006 at 12:54pm.

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?

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

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