The Ionic Concentrations in the Interior and Exterior of Body

Question

The ionic concentrations in the interior and exterior of body cells .
A) reveal an excess of Na+ ions in the extracellular fluid
B) reveal an excess of Na+ ions in the intracellular fluid
C) reveal an excess of K+ ions in the extracellular fluid
D) are the same

Accepted Answer

The ionic concentrations in the interior and exterior of body cells show a distinct distribution: there is an excess of Na+ ions in the extracellular fluid, while K+ ions are more concentrated inside the cells. This distribution is crucial for various cellular functions, including the generation of action potentials in neurons.