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2.2 Animal tissues, organs and organ systems

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Question 22
F

HIV is a virus that infects and destroys lymphocytes. Many people with untreated HIV die from tuberculosis or pneumonia rather than from HIV itself.

a.

Explain why a person with untreated HIV is more likely to develop tuberculosis.

[3]
b.

Tuberculosis is a communicable disease. Explain what this tells you about tuberculosis.

[1]
c.

Some people with untreated HIV also develop a rare cancer.

Suggest how a virus in the body can lead to a cancer developing.

[1]
Markscheme

2.2 Animal tissues, organs and organ systems Questions

  1. GCSE
  2. /Biology
  3. /2.2 Animal tissues, organs and organ systems

304 exam-style questions on AQA GCSE Biology 2.2 Animal tissues, organs and organ systems, covering 2.2.1 The human digestive system, 2.2.2 The heart and blood vessels, 2.2.3 Blood, 2.2.4 Coronary heart disease: a non-communicable disease, 2.2.5 Health issues, 2.2.6 The effect of lifestyle on some non-communicable diseases, and 2.2.7 Cancer. Each one has a worked solution and a mark scheme showing where the marks go.

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