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CAIE A-Level Biology 10.2.2 Why Antibiotics Do Not Affect Viruses

Practise matching antibiotics to bacterial walls, 70S ribosomes or metabolic targets, then explain why viruses lack these structures and use host machinery.

Syllabus
2028–2030
Course
Biology 9700
Level
AS

Exam points

  • identify the bacterial structure or metabolic process targeted by the named antibiotic
  • state that viruses lack cell walls, ribosomes and independent metabolic pathways
  • contrast bacterial 70S with human cytoplasmic 80S ribosomes when relevant

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