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The ratio of Na^+ and K^+ transported by Na^+/K^+-ATPase pump is ___________(a) 1:1(b) 2:1(c) 2:3(d) 3:2The question was posed to me during a job interview.My doubt stems from Movement of Substances Across Cell Membranes in section Cellular Membranes of Cell Biology

Answer»

Correct answer is (d) 3:2

Best explanation: The sodium potassium pump is an active TRANSPORTER that USES ATP to TRANSPORT Na and K ions across a membrane. With each ATP used the pump exports 3 Sodium ions while it imports 2 Potassium ions into the cell.



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