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IB Biology HL B2.1.4 Integral and Peripheral Proteins Questions

Analyse how integral and peripheral proteins are positioned relative to the bilayer and apply their channel, pump, receptor, enzyme, adhesion and recognition roles in IB Biology…

Syllabus
First assessment 2025
Course
Biology HL
Level
HL

Exam points

  • Distinguish integral proteins embedded in one or both phospholipid layers, including transmembrane proteins, from peripheral proteins attached to a membrane surface.
  • Identify membrane-protein roles including channels, pumps, receptors, enzymes, adhesion and cell recognition.
  • Use labelled membrane diagrams to locate integral, peripheral and glycoprotein components relative to the phospholipid bilayer.

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Study B2.1.4—Integral and peripheral proteins conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

IB Biology HL B2.1.4 Integral and Peripheral Proteins Questions question 1

[Maximum number: 4]

Oxygen is needed to complete aerobic cell respiration.

Outline four different functions of membrane proteins.

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