試題詳解

7. For a resting neuron, which of the following is true regarding ion distribution and membrane potential?
(A) The concentration of Na+ is higher inside the cell, and the membrane potential is positive.
(B) The concentration of K+ is higher outside the cell, and the membrane potential is positive.
(C) The concentration of Na+ is higher outside the cell, and the inside is negatively charged relative to the outside.
(D) The concentration of K+ is higher outside the cell, and the inside is positively charged relative to the outside.