In the resting state of the neutral membrane, diffusion due to concentration gradients, if allowed would drive.

Options

A. `K^(+)` into the cell
B. `K^(+)` and `NA^(+)` out of the cell
C. `NA^(+)` into the cell
D. `NA^(+)` out of the cell

Answer

C

Explanation

In the resting nerve fibre, the cytoplasm inside the axon has a high concentration of `K^(+)` and a low concentration gradient `Na^(+)` enters the fibre.