Quiz  /  Antibiotics Class 12 MCQ Questions With Answers

  • 1. 
    When all forms of microbial life have been removed or destroyed, it is ______

  • disinfected
  • sterilized
  • neutralized
  • pasteurized

  • 2. 
    _______________ are chemicals produced by bacteria and fungi that inhibit or kill other microbes.

  • plasmas
  • disinfectants
  • antiseptics
  • antibiotics

  • 3. 
    Identify the correct definition of an antiseptic:

  • Chemicals that kill or prevent infection and damage living tissues
  • Chemicals that kill or prevent infection without damaging living tissues
  • Chemicals that can only kill or prevent infection on non-living tissues
  • Chemicals that can only kill or prevent infection on animal housing

  • 4. 
    What unwanted surprise was growing on one of Fleming's culture plates when he returned from holiday?

  • fungus
  • Virus
  • Bacteria
  • Protists

  • 5. 
    Tools such as autoclaves use steam ____________ to elevate the temperature above boiling to sterilize surgical equipment.

  • dilution
  • surfactants
  • under pressure
  • ionizers

  • 6. 
    If you go to a doctor and are prescribed antibiotics you probably have an illness cause by a

  • virus
  • bacteria
  • host cell
  • macrophage

  • 7. 
    The process of killing all microorganisms along with their spores is ____________________

  • Disinfection
  • Antisepsis
  • Sanitization
  • Sterilization

  • 8. 
    A chemical agent that kills the microorganisms and is commonly applied to substances used on inanimate objects, such as counter surfaces, are _______________

  • Antiseptics
  • Sanitizer
  • Disinfectants
  • Antibiotics

  • 9. 
    Which of the following are generally applied on living animal tissues?

  • Antiseptics
  • Disinfectants
  • Preservatives
  • Sanitizer

  • 10. 
    Identify the term that is used to ensure surgical instruments are free from micro-organisms:

  • Disinfected
  • Cleaned
  • Pasteurized
  • Sterilization

  • 11. 
    Fleming had discovered the first antibiotic. Antibiotics prevent the growth of ...

  • mold
  • bacteria
  • fungi
  • viruses

  • 12. 
    Fleming had discovered ...

  • immunization
  • penicillin
  • vaccination
  • placebo

  • 13. 
    Milk and other beverages undergo a mild heating process to destroy a particular spoilage or disease-causing organism. this is known as

  • sterilization
  • pasteurization
  • decontamination
  • degerming

  • 14. 
    What are three actions that could prevent antibiotic resistance?

  • Take all of the prescribed medication.
  • Do not take medication prescribed to someone else.
  • Do not take an antibiotic for a viral infection.
  • all of these are correct

  • 15. 
    The temperature or cleanliness of an object has no effect on how well a disinfectant will work

  • True
  • False

  • 16. 
    Penicillin is the only type of antibiotic.

  • True
  • False

  • 17. 
    What did he notice around the mold?

  • The mold made the culture plate liquid
  • The bacteria there was bright orange
  • There was nothing to notice
  • No bacteria grew there

  • 18. 
    Louis Pasteur invented the process of heating milk to destroy harmful bacteria which is called what?

  • Homogenization
  • UHT
  • Freezing
  • Pasteurization

  • 19. 
    Asepsis is the absence of pathogens on an object or area.

  • True
  • False

  • 20. 
    Penicillin works best on

  • Gram positive bacteria
  • Gram negative bacteria
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