A neuron's resting potential is due to the greater concentration of:
A) potassium and sodium ions outside of the neuron.
B) potassium and sodium ions inside of the neuron.
C) potassium ions inside the neuron and the greater concentration of sodium ions outside the neuron.
D) sodium ions inside the neuron and the greater concentration of potassium ions outside the neuron.

Question

Quizplus · Accepted Answer

The resting potential of a neuron is due to the greater concentration of potassium ions inside the neuron and the greater concentration of sodium ions outside the neuron. This creates an electrochemical gradient, where potassium ions are attracted to move out of the cell and sodium ions are attracted to move into the cell. The resulting potential difference across the cell membrane is the resting potential.

A Neuron's Resting Potential Is Due to the Greater Concentration