Biologyhard · Past Paper
Which of the following is an example of 'Active Transport'?
AOxygen diffusion in lungs
BSodium-Potassium pump
CWater movement into roots
DGlucose moving through a channel down its gradient
✓ Correct Answer: B — Sodium-Potassium pump
The Na+/K+ pump uses ATP to move ions against their concentration gradient.
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