Energy released as electrons pass along the electron transport chain is used to

  1. reduce oxygen directly to ATP
  2. make glucose
  3. split water
  4. pump protons into the intermembrane space
Answer

D) pump protons into the intermembrane space

Protons are pumped to create a gradient. AS & A Level Biology · Topic 12 Energy and Respiration · 12.2 Respiration

Biology MCQ · More A Level Biology: Energy and respiration MCQs · Practise