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HomeWJEC GCSE Combined Science (Double Award)Biology: Microorganisms and Disease
WJEC · GCSE · Combined Science (Double Award) · Revision Notes

Biology: Microorganisms and Disease

54 words · Last updated July 2026

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What you'll learn

How microorganisms cause disease.

Key ideas

  • Pathogens (bacteria, viruses, fungi, protists); body defences.
  • Vaccination and antibiotics (bacteria only).

Exam tips

  • Match a disease to its pathogen.
  • Antibiotics don't kill viruses.

Common mistakes

  • Treating all disease as infectious.
  • Saying antibiotics kill viruses.
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