Question

Cells have a channel that allows sodium cations to pass freely from the outside to the inside and vice versa. What happens to the concentration of sodium cations inside a cell if the outside environment has 100X more sodium cations than the inside?
A. Sodium cations will not move into or out of the cell because they cannot pass through the plasma membrane since they are positively charged.
B.Sodium cations will flood out of the cell until there is no sodium cations on the inside.
C.Sodium cations from outside will flood into the cell until there is no sodium outside the cell. D.Sodium cations will flood into the cell until the amount inside is equivalent to the amount outside the cell.

Answer 1

Answer: D

Explanation: