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B1.1.7—Glycoproteins in cell-cell recognition

Glycoproteins and glycolipids display carbohydrate chains at the cell surface, enabling recognition, adhesion, signalling, and immune compatibility between neighbouring cells.

Syllabus
First assessment 2025
Objective
B1.1.7
Level
SL

Concept essentials

  • Glycoproteins are proteins with attached carbohydrate chains.
  • Glycolipids are lipids with attached carbohydrate chains.
  • Cell-surface carbohydrates can act as recognition markers.
  • ABO blood group antigens depend on surface carbohydrate differences.
ConceptIB Biology SL