Typically for most organisms, the amount of potassium inside the cell is much higher than the amount of sodium; inversely, the amount of sodium inside the cell is much lower than the amount of sodium outside the cell.
Which of the following can happen through the process of PASSIVE TRANSPORT (diffusion)? Note: There may be more than one correct choice.
Question 4 options:
Sodium turning into calcium
Potassium moving from A to B
Sodium moving from B to A
Potassium moving from B to A
Sodium moving from A to B