A resting axon's fluid interior has a mostly negative charge thanks to the presence of large ________ ions.
A) sodium
B) serotonin
C) protein
D) dopamine

Question

Quizplus · Accepted Answer

The fluid interior of a resting axon has a mostly negative charge due to the presence of large protein ions. Sodium ions are positively charged and are found outside the axon, while serotonin and dopamine are neurotransmitters that are not present in significant amounts in the interior of the axon.

A Resting Axon's Fluid Interior Has a Mostly Negative Charge