B5 · HealthAQA GCSE Biology · 8461 (Triple)
Specific Diseases
Measles, HIV, TMV, rose black spot, salmonella, gonorrhoea, malaria. Symptoms, transmission and treatment. Paper 1.
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CognitoSpecific diseases — bacteria, viruses, fungi, protists
Key facts & methods
Viral diseases — fill in the table
| Disease | Spread by | Symptoms / effects | Prevention / treatment |
|---|
| Measles | | | |
| HIV | | | |
| TMV (Tobacco Mosaic Virus) | | | |
Bacterial diseases — fill in the table
| Disease | Spread by | Symptoms | Prevention / treatment |
|---|
| Salmonella | | | |
| Gonorrhoea | | | |
Fungal and protist diseases — fill in the table
| Disease | Spread by | Symptoms / effects | Prevention / treatment |
|---|
| Rose black spot (fungus, Diplocarpon rosae) | | | |
| Malaria (protist, Plasmodium) | | | |
Prevention strategies
- Vaccination: measles (MMR), salmonella in poultry.
- Antibiotics: gonorrhoea (bacterial), but antibiotic resistance is a growing problem.
- Antiretroviral drugs: HIV — slow replication but do not cure.
- Barrier methods: condoms reduce sexually transmitted infections.
- Vectors: controlling mosquito populations reduces malaria.
- Hygiene: hand washing, food preparation, isolating infected individuals.
Exam questions — 5 questions · 11 marks · AQA 8461 style
⚡ Show all reasoning — the AI marks against the AQA mark scheme. Partial credit for correct biology even if wording differs.
1 markHIV transmissionAQA 8461 style
HIV is transmitted by:
A Droplets from coughs and sneezes
B Contact with infected water supplies
C Sexual contact or exchange of body fluids such as blood
D Insect vectors
1 markRose black spotAQA 8461 style
Rose black spot affects roses by:
A Causing brown rot in the roots, preventing water uptake
B Producing black/purple spots on leaves which turn yellow and fall off, reducing photosynthesis
C Blocking xylem vessels so water cannot reach the leaves
D Producing toxins that kill leaf cells directly
4 marksCompare disease preventionAQA 8461 style
Compare the methods used to prevent malaria with those used to prevent measles. (4 marks)
Hint: Measles = vaccination. Malaria = vector control. Compare the approaches and explain why they differ.
+40 XP
3 marksAntibiotic resistance concernAQA 8461 style
Gonorrhoea is now much harder to treat than in the past. Explain why, in terms of antibiotic resistance. (3 marks)
Hint: Natural selection: mutation → resistant bacteria survive → reproduce → resistance spreads. This is an evolution question.
+30 XP
1 markHIV treatmentAQA 8461 style
What type of drug is used to treat HIV, and what does it do?
A Antibiotics — kill the HIV virus directly
B Antiretroviral drugs — slow the rate at which HIV replicates, delaying progression to AIDS
C Vaccines — prevent HIV infection after exposure
D Fungicides — target the protein coat of the virus
Quick recall flashcards
Module complete! 🎉
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