The sodium–potassium pump moves

  1. 2 Na⁺ out and 3 K⁺ in
  2. 3 K⁺ out and 2 Na⁺ in
  3. 3 Na⁺ out and 2 K⁺ in
  4. Na⁺ in only
Answer

C) 3 Na⁺ out and 2 K⁺ in

It uses ATP to maintain gradients. AS & A Level Biology · Topic 15 Control and Coordination · 15.1 Control and coordination in mammals

Biology MCQ · More A Level Biology: Control and coordination MCQs · Practise