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B2.2.3—Advantages of compartmentalization

Compartmentalization uses internal membranes to create organelles with controlled conditions, concentrated enzymes, separated reactions, and efficient gradients inside eukaryotic cells.

Syllabus
First assessment 2025
Objective
B2.2.3
Level
HL

Exam analysis

Chance of appearing1%of analysed past papers
Latest appearanceMay 2025
Most common paperPaper2
Typical marks4

Common command terms

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Recent exam appearances

May 2025Paper2 ["HL"] · TZ39(a)[ 4 ]B2.2.3—Advantages of compartmentalization
Practice this objective

Coverage 2025–2025 · Updated 15 Jul 2026

Concept essentials

  • Internal membranes divide eukaryotic cells into functional compartments.
  • Compartmentalization can concentrate enzymes and substrates in small volumes.
  • Different organelles can maintain different pH or chemical conditions.
  • Lysosomes keep hydrolytic enzymes separated from the cytoplasm.
ConceptIB Biology HL