Biology · Triple Science Higher
Infection and Response
Spec 4.3Paper 19 subtopics
Subtopics
1
Communicable Diseases and Human Defence Systems
Describe what communicable diseases are, how pathogens spread and how the body defends itself.
2
Viral Diseases
Describe the main viral diseases — measles, HIV/AIDS and tobacco mosaic virus.
3
Bacterial Diseases
Describe Salmonella food poisoning and Gonorrhoea as examples of bacterial diseases.
4
Fungal and Protist Diseases
Describe rose black spot (fungal) and malaria (protist) as examples of these disease types.
5
Vaccination
Explain how vaccines work, why they protect populations and what herd immunity means.
6
Antibiotics and Painkillers
Explain how antibiotics work, why antibiotic resistance is a threat, and the role of painkillers.
7
Drug Discovery and Development
Describe how new drugs are discovered, tested and approved before being used on patients.
8
Plant Disease Detection and Defence
Describe how plant diseases are identified and how plants defend themselves against pathogens and pests.
9
Monoclonal Antibodies
Describe how monoclonal antibodies are produced and their uses in medicine and diagnosis.
Higher tier only
Monoclonal antibodies — production and uses
Plant defence responses
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