In: Anatomy and Physiology
Na/K pump transport is for active transport. Active transport is responsible for maintaining large excess of Na+ outside the cell and large excess K+ ions inside the cell. The sodium potassium transport is an important contributer to action potential produced by nerve cells. The process of moving sodium and potassium ions across the cell membrane is an active transport involving the hydrolysis of ATP to provide necessary ATP. ATP is the enzyme referred to as the Na+/K+ -ATPase. The figure below shows the function of the Na/K pump.
Ca pump : Calcium pumps play a crucial role in proper cell signalling by keeping the intracellular calcium concentration roughly 10,000 times lower than the extracellular concentration. Failure to do so is one cause of muscle cramps. The cytoplasm of the striated muscle cells is sacroplasm.