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IB Biology HL C1.2.3 Atp Adp Interconversions Questions

Practise IB Biology HL 8.2.3 by evaluating ATP formation and hydrolysis as reversible energy-transfer steps in metabolism.

Syllabus
First assessment 2025
Course
Biology HL
Level
HL

Exam points

  • Distinguish ATP synthesis from ATP hydrolysis and identify when energy is released or stored.
  • Identify ATP production as a shared outcome of respiration and photosynthesis.

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Study C1.2.3—ATP ↔ ADP interconversions conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

IB Biology HL C1.2.3 Atp Adp Interconversions Questions question 1

[Maximum number: 1]

Which reaction does not cause a net release of energy?

A

ADP combines with inorganic phosphate to form ATP

B

ATP releases inorganic phosphate to form ADP

C

Loss of hydrogen from reduced NAD

D

Oxidation of reduced FAD

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