Key Facts: Pathogens
Part of Pathogens and Disease Transmission · GCSE GCSE Biology revision
This key facts covers Key Facts: Pathogens within Pathogens and Disease Transmission for GCSE Biology. Types of pathogens, how diseases spread, transmission methods, and prevention strategies It is section 2 of 19 in this topic. Use this key facts to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 2 of 19
Practice
24 questions
Recall
21 flashcards
Key Facts: Pathogens
- Pathogen definition: Any microorganism that causes disease in living organisms
- Four main types: Bacteria, viruses, fungi, and protists
- Size order: Bacteria > Fungi > Protists > Viruses (smallest)
- Transmission routes: Direct contact, airborne, vector, water, food
- Prevention principle: Break the chain of transmission
Keep building this topic
Read this section alongside the surrounding pages in Pathogens and Disease Transmission. That gives you the full topic sequence instead of a single isolated revision point.
Practice Questions for Pathogens and Disease Transmission
What is a pathogen?
Explain why viruses need to infect host cells in order to reproduce.
Quick Recall Flashcards
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