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CAIE A-Level Biology 12.2.8 Oxidative Phosphorylation

Practise tracing electron transport and proton pumping, oxygen's final-acceptor role and proton return through ATP synthase to phosphorylate ADP.

Syllabus
2028–2030
Course
Biology 9700
Level
A2

Exam points

  • trace electrons through carriers while released energy pumps protons into intermembrane space
  • identify oxygen as the final electron acceptor forming water with electrons and protons
  • explain proton diffusion through ATP synthase driving ADP phosphorylation

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