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IB Biology HL 2.2.4 Mitochondrial Adaptations Question Bank

Practise IB Biology HL 2.2.4 through exact HL questions on cristae, proton gradients, ATP synthase and mitochondrial adaptations for oxidative phosphorylation.

Syllabus
First assessment 2025
Course
Biology HL
Level
HL

Exam points

  • Analyse how cristae, a narrow intermembrane space and ATP synthase support chemiosmosis.
  • Use mitochondrial ultrastructure to explain efficient electron transfer and oxidative phosphorylation.
  • Evaluate structural adaptations of mitochondria by linking each feature to its respiratory function.

B2.2.4 (HL)—Mitochondrion adaptations question 1

[Maximum number: 4]

Draw a labelled diagram of a mitochondrion as seen in an electron micrograph.

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