At rest,the concentrations of _____ are higher inside of a neuron,whereas the concentrations of _____ are higher outside of a neuron.
A) potassium (K+);sodium (Na+)
B) sodium (Na+);potassium (K+)
C) potassium (K+);chloride (Cl-)
D) potassium (K+);anions (A-)

Question

Quizplus · Accepted Answer

The concentration of potassium (K+) is higher inside the neuron and the concentration of sodium (Na+) is higher outside the neuron at rest. This concentration gradient is maintained by the sodium-potassium pump, which pumps 3 Na+ out for every 2 K+ in. This gradient ensures that the neuron is polarized, with a more negative charge inside the cell compared to outside.

At Rest,the Concentrations of _____ Are Higher Inside of a Neuron,whereas