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3.1 Communicable diseases

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Question 80
F

In some countries, low doses of antibiotics are added to the feed of healthy farm animals so that the animals grow faster. Many countries have now banned this practice.

a.

Suggest how adding low doses of antibiotics to animal feed could increase the number of antibiotic-resistant bacteria.

[3]
b.

Explain why resistant bacteria in farm animals are a problem for human health.

[2]
c.

Some farmers argue that the ban will reduce the amount of food they can produce. Evaluate the decision to ban the use of antibiotics in animal feed.

[3]
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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