When the net charge on either side of the plasma membrane is

When the net charge on either side of the plasma membrane is zero, what else is true? The electrochemical potential across the membrane is zero. The resting membrane potential is between -20 mV and -200 mV. The K^+ leak channels are open. There is an equal number of K+ ions on each side of the plasma membrane.

Solution

Answer:

The electrochemical potentials across the membrane is zero.

Explanation:

In the nerve membrane there are several types of channels, each of which is selective to a specific ion, such as Na⁺ or K⁺. Therefore the situation of zero net flow across the membrane does not depend on one particular ion concentration gradient but it involves the concentration of the other permeant ions and their relative permeabilities. In the resting membrane, the resting potential V is constant and there is no net current crossing in or out of the cell, although each individual conductance may be carrying a net current