Quiz  /  Immunity Class 9 MCQ Questions With Answers

  • 1. 
    What is the scientific term for spreading a disease?

  • Passing
  • Catching
  • Transmitting
  • Giving

  • 2. 
    Viruses are

  • easily killed
  • destroyed by antibiotics
  • nonliving
  • different kinds of bacteria

  • 3. 
    Which disease is caused by a bacteria?

  • flu
  • cold
  • athletes foot
  • strep throat

  • 4. 
    Inflammation is designed to be a protective defensive mechanism.

  • True
  • False

  • 5. 
    Which of the following can cause infections to open cuts?

  • Baceteria
  • Viruses
  • Fungi
  • All of them

  • 6. 
    What pathogen causes the common cold?

  • Virus
  • Bacteria
  • Fungi
  • Protista

  • 7. 
    Antibiotics do not work on

  • bacteria
  • viruses
  • fungi
  • children

  • 8. 
    Which of the following is NOT one of the signs of inflammation?

  • redness (erythema)
  • heat
  • pain
  • bleeding

  • 9. 
    Name this process

  • eating
  • phagocytosis
  • destruction
  • ingesting

  • 10. 
    HIV is an example of what kind of transmission?

  • Bloodborne
  • Waterborne
  • Airborne
  • All of above

  • 11. 
    Which of the following is NOT a nonspecific defense?

  • mucus
  • sweat
  • antibodies
  • tears

  • 12. 
    Cholera is spread through

  • polluted air
  • contaminated food and water
  • insect bites
  • helminths

  • 13. 
    Disease-causing microorganism, such as a bacterium or virus.

  • pathogen
  • allergen
  • prion
  • antigen

  • 14. 
    The process where leukocytes engulf and digest bacteria is called

  • leukocytosis
  • hydrostatic pressure
  • pathogenolysis
  • phagocytosis

  • 15. 
    Antibiotics are used to treat

  • viruses
  • bacteria
  • both viruses and bacteria
  • fungal infections, only

  • 16. 
    Which of the following is not a characteristic sign of acute inflammation?

  • lasts for a long period of time
  • swelling
  • loss of movement
  • redness

  • 17. 
    Which picture illustrates a type of coccus bacterium?

  • Picture 1.
  • Picture 2
  • Picture 3

  • 18. 
    What do white blood cells do?

  • Seek out and kill all living tissue
  • Seek out and kill pathogens
  • Transport food around the body
  • Repair cuts and injuries

  • 19. 
    Some staphylococcal infections result from direct contact with infected wounds.Which of the following cells is a first line of defence against staphylococcal bacteria?

  • B cells
  • Skin cells
  • Killer T cells
  • Helper T cells
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