Before an Action Potential Begins,the Fluid Outside an Axon's Membrane

Multiple Choice

Before an action potential begins,the fluid outside an axon's membrane has ________ ions;the fluid inside has ________ ions.

A) mostly negatively charged;mostly positively charged
B) equal numbers of positively and negatively charged;equal numbers of positively and negatively charged
C) mostly positively charged;mostly negatively charged
D) neither positively nor negatively charged;neither positively nor negatively charged