The sodium-potassium pump is an antiport enzyme.
- This means it transports substances in the opposite direction.
Facts about the Sodium-Potassium Pump
- It uses ATP to pump 3 sodium ions and 2 potassium ions into a cell.
- The membrane is permeable to [katex]K^+[/katex].
- It is impermeable to [katex]Na^+[/katex].
- These factors allow an electrochemical gradient to be set up
- The cell has a negative charge.