Which diagram shows the distribution of `Na^(+)`and `K^(+)` ions in a section of non- myelinated axon which is at resting potential

Options

A.
B.
C.
D.

Answer

D

Explanation

* During resting membrane no nerve impulse is generated. During this inside the membrane is more negatively charged than outside.
* During resting membrane potential the concentration of `Na^(+)` is more outside and concentration of `K^(+)` is more inside.
* During resting membrane potential permeability of `K^(+)` is more than `Na^(+)` thus maintain resting membrane potential at –55 mv.