Cells in the nervous system have a potential difference of 70mV across the cell membrane separating the interior of the cell from the extracellular fluid. This potential difference is maintained by the iion pumps that move charged ions across the membrane. Is this an emf

The correct answer is - yes, The ion pumps can actively separate charge; thus, they can create a potential difference.

Explanation:

Ion channels create a potential difference by providing a path for the flow of current across the membrane. Ion pumps such as Na+/K+ pump create a potential difference across the membrane by separating the charge.

In the sodium-potassium pump the movement of ions across the inside and outside of the membrane by active transport. The concentration difference between the inside of the membrane and outside of the membrane causes a potential difference.

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