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Physiology General 44a1032d

Which of them is TRUE about Na – - K+ pump

A
K+ is pumped against the gradient
B
2K+ are exchanged with 5Na+
C
Hypercalcemia causes arrest in Na+ K+ pump
D
Increase in intracellular Na+ increases action potential
High-Yield Explanation
In Na+-K+ exchange, 3 Na+ goes out and 2K+ goes into the cell with the utilization of ATP. Hence it is a primary active transport. Due to the net flow of Na+ outwards, there is a potential difference that occurs. Both Na+  and K+  are pumped against a concentration gradient by using ATP.

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