Question

For a fictional neuron, the nernst potential of the mg2+ ion is +30 mv. given this information, where is the ion more highly concentrated? mg2+ is at a higher concentration inside the cell mg2+ is at a higher concentration outside the cell there is not enough information to determine the answer unanswered

Answer 1

From the nernst potential given, the mg2+ ion is at a higher concentration outside the cell.

What is nernst potential?

The potential across the cell membrane that exactly opposes net diffusion of a particular ion through the membrane.

The nernst potential of an ion is calculated as follows;

$E = \frac{RT}{zF} ln[\frac{ion \ outside \ cell}{ion \ inside \ cell} ]$

The given nernst potential of mg2+ ion is +30 mv = +0.03 V, (positive volt).

A positive log can only be obtained when the numerator (ion outside cell) is greater than the denominator (ion inside cell).

Thus, from the information given, the mg2+ ion is at a higher concentration outside the cell.

Learn more about nernst potential here: https://brainly.com/question/15394851

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