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3.1 Communicable diseases

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Question 28
F

A person is vaccinated against a virus. Six months later the live virus enters their body. The person does not become ill.

a.

Describe how the vaccine protected the person from becoming ill.

[4]
b.

The person's friend has never been vaccinated against this virus. Explain why the friend becomes ill when the same virus enters their body.

[2]
Markscheme

3.1 Communicable diseases Questions

  1. GCSE
  2. /Biology
  3. /3.1 Communicable diseases

176 exam-style questions on AQA GCSE Biology 3.1 Communicable diseases, covering 3.1.1 Communicable (infectious) diseases, 3.1.2 Viral diseases, 3.1.3 Bacterial diseases, 3.1.4 Fungal diseases, 3.1.5 Protist diseases, 3.1.6 Human defence systems, 3.1.7 Vaccination, 3.1.8 Antibiotics and painkillers, and 3.1.9 Discovery and development of drugs. Each one has a worked solution and a mark scheme showing where the marks go.

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