Lesson 4.3.1.2

4.3.1.2 Viral diseases Quiz: AQA Combined Science, Unit 3

20 questions

Written by Revision Ninja · Last reviewed 11 October 2026

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Lesson 4.3.1.2, Viral diseases: 20 multiple choice questions for the AQA GCSE Combined Science (8464), Unit 3: Infection and response, written with Revision Ninja.

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The 20 questions

  1. Which symptoms are characteristic of measles infection?

    • Joint pain and swelling
    • Fever and rash
    • Cough and fatigue
    • Vomiting and diarrhoea

  2. How is the measles virus primarily spread?

    • Sexual contact
    • Contaminated water
    • Sharing needles
    • Inhaling droplets

  3. Why are young children routinely vaccinated against measles?

    • It causes infertility
    • It can be fatal
    • It destroys muscles
    • It stops bone growth

  4. What does HIV initially cause?

    • Thick discharge
    • A flu-like illness
    • Rose black spot
    • Malaria and fever

  5. What term describes late-stage HIV infection?

    • Pathogen
    • TMV
    • Antiretroviral
    • AIDS

  6. Which method spreads the HIV virus?

    • Droplet inhalation
    • Insect vectors
    • Infected food
    • Sexual contact

  7. Which crop is commonly affected by tobacco mosaic virus?

    • Tomatoes
    • Barley
    • Potatoes
    • Wheat

  8. What pattern does tobacco mosaic virus cause on leaves?

    • Mosaic discolouration
    • Brown leaf curls
    • Black ring rot
    • White powdery spots

  9. A patient has fever and a red rash and is not vaccinated. Which disease is most likely?

    • Rose black spot
    • Gonorrhoea
    • Salmonella
    • Measles

  10. What cellular target does the HIV virus attack?

    • Immune cells
    • Red blood cells
    • Muscle cells
    • Nerve cells

  11. What makes late-stage HIV infection extremely dangerous?

    • Infections cannot be fought
    • Blood clots form
    • Bones become brittle
    • Heart valves fail

  12. How does tobacco mosaic virus limit plant growth?

    • Blocks root absorption
    • Destroys xylem vessels
    • Prevents pollination
    • Reduces photosynthesis

  13. What is the primary function of antiretroviral drugs?

    • Kill bacteria
    • Cure measles
    • Prevent TMV
    • Control HIV

  14. What is the best protection against measles in young children?

    • Antibiotics
    • Antiretrovirals
    • Painkillers
    • Vaccination

  15. Which activity can transmit the HIV virus?

    • Sharing needles
    • Coughing nearby
    • Drinking water
    • Sharing cutlery

  16. Which type of pathogen causes tobacco mosaic virus?

    • Virus
    • Fungus
    • Protist
    • Bacterium

  17. What type of illness does initial HIV infection cause?

    • Flu-like illness
    • Chest infection
    • Skin rash
    • Stomach ulcer

  18. How is the measles virus primarily spread between individuals?

    • Sexual contact
    • Airborne droplets
    • Contaminated water
    • Insect vectors

  19. What is the primary medical reason for childhood measles vaccination?

    • Boost antibiotic resistance
    • Enhance night vision
    • Prevent fatal complications
    • Stimulate red blood cells

  20. How do antiretroviral drugs help patients infected with HIV?

    • Destroy the pathogen
    • Prevent all transmission
    • Cure the infection
    • Control the virus

All AQA Combined Science quizzes