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3.1 Communicable diseases

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Question 14

Malaria is common in a village. A man in the village has malaria. Each night, he sleeps under a mosquito net treated with insecticide.

Why does this help to reduce the number of new cases of malaria in the village?

[1]
A

Fewer mosquitoes can bite him, so fewer mosquitoes pick up the protist to pass on

B

The net traps the droplets he breathes out, so fewer people inhale the protist

C

He is isolated under the net, so he cannot pass the protist on by direct contact

D

The insecticide on the net enters his blood and kills the protist there

Markscheme

3.1 Communicable diseases Questions

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

252 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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