試題詳解

36. Which of the following ions is the intracellular concentration typically higher than the extracellular concentration?
1. Sodium 2. Potassium 3. Chloride 4. Calcium 5. Magnesium
(A) 1 only
(B) 2 only
(C) 1 and 5
(D) 2 and 3
(E) 4 and 5