The difference in the concentration of sodium ions inside and outside the neuron is called the ___.
A) electrostatic pressure
B) resting potential
C) concentration gradient
D) ionic differential

Question

Quizplus · Accepted Answer

The difference in the concentration of sodium ions inside and outside the neuron is known as the concentration gradient. This refers to the uneven distribution of sodium ions on either side of the neuron’s membrane, where there are more sodium ions outside compared to inside. This gradient creates a force that drives the movement of sodium ions from areas of high concentration (outside the cell) to areas of low concentration (inside the cell) through ion channels in the membrane. This movement of ions generates an electrical potential difference called the resting potential.

The Difference in the Concentration of Sodium Ions Inside and Outside