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CAIE A-Level Biology 13.1.7 The Light-Dependent Stage

Practise tracing photoactivated electrons, proton pumping and ATP synthase, then distinguish cyclic ATP output from non-cyclic ATP, reduced NADP and oxygen.

Syllabus
2028–2030
Course
Biology 9700
Level
A2

Exam points

  • trace photoactivated electrons through thylakoid carriers and back or onward as required
  • explain chemiosmotic ATP synthesis from proton pumping and ATP synthase flow
  • distinguish cyclic ATP-only output from non-cyclic ATP, reduced NADP and oxygen

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