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5.1 Health and communicable disease

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Question 25
H

A programme supplies mosquito nets and removes standing water. Malaria cases then fall.

Which explanation links both actions to the decrease?

[1]
A

nets reduce bites; removing water reduces mosquito breeding sites

B

nets kill the protists; removing water prevents their airborne spread

C

nets prevent oral transmission; removing water removes infected food

D

nets destroy infected cells; removing water stops viral DNA replication

Markscheme

5.1 Health and communicable disease Questions

  1. GCSE
  2. /Biology
  3. /5.1 Health and communicable disease

43 exam-style questions on Edexcel GCSE Biology 5.1 Health and communicable disease, covering 5.1.1 Communicable and non-communicable diseases, 5.1.2 Disease susceptibility interactions, 5.1.3 Pathogens as disease-causing organisms, 5.1.4 Common infections, 5.1.5 Spread and prevention of pathogens, 5.1.6 Lifecycle of a virus, and 5.1.7 Spread and prevention of STIs. Each one has a worked solution and a mark scheme showing where the marks go.

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