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Practice problem

Pumps (Active Transport) — Definition & Types

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Which of the following best describes the Na $^+$ /K $^+$ pump?

Choose one answer

Option A: A

For every two K $^+$ ions pumped out of the cell, three Na $^+$ ions are pumped into the cell.

Option B: B

For every two K $^+$ ions pumped into the cell, three Na $^+$ ions are pumped out of the cell.

Option C: C

For every three K $^+$ ions pumped out of the cell, two Na $^+$ ions are pumped into the cell.

Option D: D

For every three K $^+$ ions pumped into the cell, two Na $^+$ ions are pumped out of the cell.

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