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CAIE A-Level Biology 11.1.2 Antigens and Immune Recognition

Practise defining antigenic molecules, distinguishing tolerated self from foreign non-self and explaining selective lymphocyte activation through complementary receptor binding.

Syllabus
2028–2030
Course
Biology 9700
Level
AS

Exam points

  • define an antigen as a molecule that can trigger a specific immune response
  • distinguish tolerated self antigens from foreign non-self antigenic molecules
  • explain selective lymphocyte activation through complementary receptor–antigen binding

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