Respuesta :
Na-K pump is a primary active transport system that transports 3 Na⁺ outside the cell and 2 K⁺ inside the cell. In one cycle a ATP is required through which 3 Na⁺ and 2 K⁺ are moved. The main function of the Na⁺-K⁺ pump is to maintain the osmotic balance as well as the membrane potential of the cells.
Osmotic balance is defined as the balance of salt and water inside the body. The phenomenon is also known by the name osmoregulation. Electrolytes play an essential role in the maintenance of osmotic balance.
Membrane potential is the difference in the voltage between the inside and the outside of the cell. The membrane potential is at rest when the inside of the cell is negative as compared to the outside.
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