( A ) The axoplasm inside the axon contains low concentration of K+ and negatively charged proteins and high concentration of Na+.
( B ) Outer surface of the axonal membrane possesses a negative charge while its inner surface becomes positively charged
( C ) The electrical potential difference across the resting plasma membrane is called as the resting potential.
( D ) The fluid outside the axon contains a high concentration of K+, a low concentration of Na+
