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Na^(+)-K^(+) pump is found in membranes ...

`Na^(+)-K^(+)` pump is found in membranes of many cells, like nerve cells. It works against electro chemical gradient and involve an integral protein ATPase. For each molecule of ATP used

A

3 ions of `Na^(+)` are pumped out and two `K^(+)` are taken in

B

3 ions of `Na^(+)` are taken in and `2K^(+)` are pumped out

C

2 ions of `Na^(+)` are thrown out and `3K^(+)` are absorbed

D

3 ions of `K^(+)` are absorbed and `3Na^(+)` are pumped out

Text Solution

Verified by Experts

The correct Answer is:
B
During the generation of nerve impulse in muscle fibres + 3Na are pumped in and + 2k pumped out to generate action potential.
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