An axon's membrane potential results from
A)the concentration of positively and negatively charged ions on either side of the cell membrane.
B)the concentration of only sodium and potassium ions within the cell membrane.
C)the concentration of neurotransmitters on either side of the cell membrane.

Question

Quizplus · Accepted Answer

An axon's membrane potential is a result of the concentration of positively and negatively charged ions on either side of the cell membrane, specifically a greater concentration of negatively charged ions inside the cell and positively charged ions outside the cell. This difference in charge creates an electrical potential, or voltage, across the membrane which can be altered by changes in the movement of ions through ion channels in the membrane. The concentration of only sodium and potassium ions is not a correct answer, as other ions such as chloride also play a role in the axon's membrane potential. The concentration of neurotransmitters may affect the transmission of signals across the synapse but do not directly contribute to the axon's membrane potential.

An Axon's Membrane Potential Results from