The sodium-potassium pump maintains the resting membrane potential by:

A Moving K+ out

B Pumping 3 Na+ out and 2 K+ in per ATP, creating a net negative charge inside

C Moving Cl- in

D Equalizing charges

✓ Correct Answer: Option B

Na+/K+-ATPase: 3 Na+ out, 2 K+ in. Maintains the -70mV resting potential essential for nerve/muscle function.

💡 Why is B) the correct answer?

The correct answer to the question "The sodium-potassium pump maintains the resting membrane potential by:" is Option B: Pumping 3 Na+ out and 2 K+ in per ATP, creating a net negative charge inside.

The other options — A) Moving K+ out, C) Moving Cl- in, D) Equalizing charges — are incorrect for this DAT Exam Prep question. As explained above: Na+/K+-ATPase: 3 Na+ out, 2 K+ in. Maintains the -70mV resting potential essential for nerve/muscle function.

📚 About This DAT Exam Prep Practice Question

This 2-level DAT Exam Prep question from the Biology topic is part of BrainForge Quiz's free exam preparation library. Each question includes the correct answer and a detailed explanation to help you understand the underlying concept, not just memorize the answer.

How to use this page: Read the question above, consider all four options (A through D), then check the highlighted correct answer and explanation. For active timed practice, start a free DAT Exam Prep practice test or use flashcards for spaced repetition review.

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The sodium-potassium pump maintains the resting membrane potential by:

✓ Correct Answer: Option B

📚 About This DAT Exam Prep Practice Question

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