4.3.1.1 · Pathogens
What is a pathogen? Name the four types.
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A microorganism that causes infectious disease.
- Viruses
- Bacteria
- Protists
- Fungi. They can infect plants or animals.
AQA GCSE Biology · Topic 3
Infection & Response flashcards
42 cards on Infection & Response, every one written against a numbered point in section 4.3 of the AQA Biology spec. Here’s what the topic covers, and 4 cards to try.
- 42Flashcards
- 9Sub-topics
- 7Higher only
- 14Triple only
Try 4 cards from Infection & Response.
Answer each one in your head, then check. In the app, how well you knew it decides when you see it again.
4.3.1.2 · Viral Diseases
Describe measles: symptoms, spread and prevention.
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Symptoms: fever and a red skin rash; it can be fatal if complications arise. Spread by inhaling droplets from sneezes and coughs. Most young children are vaccinated against it.
4.3.1.6 · Human Defence Systems
How do the skin, nose and trachea stop pathogens getting in?
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Skin is a barrier and makes antimicrobial secretions. The nose has hairs and mucus that trap particles. The trachea and bronchi are lined with mucus that traps pathogens and cilia that sweep it up to the throat to be swallowed.
4.3.1.8 · Antibiotics & Painkillers
What do antibiotics do? Give an example.
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They kill infective bacteria inside the body, e.g. penicillin. Specific antibiotics must be used for specific bacteria. They have greatly reduced deaths from infectious bacterial diseases.
- +38more Infection & Response cards in the app, shown to you just before you’d forget them.Join the waitlist →
What’s in Infection & Response?
Every part of section 4.3 of the AQA spec, and how many cards cover it. Higher-only cards are hidden for Foundation students. Cards only on the separate Biology GCSE are hidden for Combined Science.
- 4.3.1.1Pathogens4 cards
- 4.3.1.2Viral Diseases4 cards
- 4.3.1.3–4.3.1.5Bacterial, Fungal & Protist Diseases4 cards
- 4.3.1.6Human Defence Systems4 cards
- 4.3.1.7Vaccination3 cards
- 4.3.1.8Antibiotics & Painkillers4 cards
- 4.3.1.9Drug Discovery & Development5 cards
- 4.3.2Monoclonal AntibodiesTriple only7 cards
- 4.3.3Plant Disease & DefencesTriple only7 cards
Launching November 2026
The other 38 cards are in the app.
revolve. shows you each Infection & Response card just before you’d forget it, so ten minutes a day is enough. It opens to students soon: join the waitlist and we’ll email you once, when it does.