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5.1 Health and communicable disease

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Question 20
F

HIV destroys some white blood cells. A person with untreated HIV later develops tuberculosis.

Which statement explains this increased susceptibility?

[1]
A

HIV changes from a virus into the tuberculosis bacterium

B

HIV changes tuberculosis from a non-communicable to a communicable disease

C

fewer working white blood cells increase the spread of airborne droplets

D

fewer working white blood cells reduce defence against infection

Markscheme

5.1 Health and communicable disease Questions

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

112 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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