Write an essay about the sodium-potassium “pump”.

In the plasma membrane of all cells is a type of solute pump called the “sodium potassium ATPase enzyme” that pumps sodium ions out of cells while pumping potassium ions into cells. Both ions are moved against their concentration gradients so this requires that energy be expended. You should discuss why the Na-K pump exists, and it’s mechanism of action. You could discuss how ATP is converted to ADP to release energy and how this energy is used. You may choose to discuss secondary active transport and/or the resting membrane potential in muscle or nerve cells. You could discuss the qualities of intra-cellular fluid versus those of extra-cellular fluid.