science
Grade-10
Easy
Question
____ membrane pump is responsible for keeping the higher concentration of potassium ion inside than outside a cell.
- Na+ K+ pump
- H+ K+ pump
- The calcium-hydrogen pump
- The ATP-ADP pump
Hint:
Na+ K+ membrane pump is responsible for keeping the higher concentration of potassium ions inside than outside a cell.
The correct answer is: Na+ K+ pump
- A higher concentration of sodium has to be maintained extracellularly.
- A higher concentration of potassium has to be maintained intracellularly.
- To keep up the membrane potential, the sodium-potassium pump maintains a higher concentration of potassium inside the cell.
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