Defence Against Disease

Defence Against Disease Quiz

Spec 5.9B–15B · Edexcel GCSE Biology: Quiz

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5 questions, one answer each

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  1. 1. Which is a chemical defence?

    • A. Skin
    • B. Cilia
    • C. Lysozymes in tears
    • D. Mucus trapping particles

  2. 2. What do memory lymphocytes allow?

    • A. Faster antigens
    • B. Faster, larger antibody response on repeat infection
    • C. Instant antigen destruction
    • D. Hydrochloric acid production

  3. 3. How does immunisation protect without causing disease?

    • A. Boosts skin barrier
    • B. Uses inactive pathogen to trigger antibody/memory lymphocyte production
    • C. Directly kills future pathogens
    • D. Replaces white blood cells

  4. 4. Why are antibiotics ineffective against viruses?

    • A. Viruses too small
    • B. Antibiotics need body temperature
    • C. Antibiotics inhibit bacterial processes viruses lack
    • D. Viruses destroyed by lysozymes

  5. 5. A zone of inhibition has diameter 24mm. Calculate its area (1 d.p.).

    • A. 452.4 mm²
    • B. 75.4 mm²
    • C. 150.8 mm²
    • D. 1809.6 mm²

Quiz