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IB Biology HL B2.2.4 Hl Mitochondrion Adaptations Questions

Explore how cristae, the intermembrane space and mitochondrial matrix compartmentalize respiration and increase ATP synthesis in IB Biology HL B2.2.4.

Syllabus
First assessment 2025
Course
Biology HL
Level
HL

Exam points

  • Relate folded cristae and inner-membrane ATP synthase/electron-transport complexes to increased surface area and ATP production.
  • Relate the narrow intermembrane space to proton accumulation and the matrix to Krebs-cycle enzymes or compartmentalized respiration.

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Study B2.2.4 (HL)—Mitochondrion adaptations conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

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