Infection control and management of
hazardous materials for the dental team
5th edition by Chris H.Miller Chapters 1-20
Chapter1:ScopeofMicrobiologyandInfection Control Test Ba
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MULTIPLECHOICE f
1. Who is reported to have first observed microbes?
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A. Pasteur
B. Koch
C. Lister
D. Leeuwenhoek
ANS: D f
Feedback
A Pasteurmade other importantcontributions to microbiology.
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B Kochmade other importantcontributionsto microbiology.
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C Lister made other importantcontributionsto microbiology.
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D Leeuwenhoekfirst observed microbes and called them“animalcules.” f f f f f f f
REF: DiscoveryofMicroorganisms andInfectionControlProcedures,page2 OBJ:
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2. In which year were microbes first observed?
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A. 1667
B. 1880
C. 1956
D. 1975
ANS: A f
Feedback
A Leeuwenhoek first observed microbes and called them“animalcules”in 1667. f f f f f f f f f
B This year is too recent.f f f f
C This year is too recent.f f f f
, D This year is too recent.
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REF: DiscoveryofMicroorganisms andInfectionControlProcedures,page2 OBJ:
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3. The process of heating a fluid to 63o C for 30 minutes to kill bacteria is best known as:
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A. sterilization.
B. disinfection.
C. pasteurization.
D. decontamination.
ANS: C f
Feedback
A Sterilization uses higher temperatures. f f f
B Disinfection usually is related to the useof germicides on inanimate surfaces.
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C Pasteurization was firstused to killmicrobes in milk and other liquids and is still used to f f f f f f f f f f f f f f f f
day.
D Decontamination isa general term fortheremoval orkilling ofmicrobesbya variety of m f f f f f f f f f f f f f f f f
ethods.
REF: DiscoveryofMicroorganisms andInfectionControlProcedures,page3 OBJ:
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4. When was the “GoldenAge of Microbiology?”
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A. Mid to late 1600s f f f
B. Mid to late 1700s f f f
C. Mid to late 1800s f f f
D. Mid to late 1900s f f f
ANS: C f
Feedback
A This period was too early.
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B This period was too early.
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C This wasthe timewhen manynew discoveriesin microbiologywerebeing made.
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D This period was too late.
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REF: DiscoveryofMicroorganisms andInfectionControlProcedures,page2 OBJ:
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5. Whatmicrobesareused to make vinegar, vitamins, drain cleaners, enzymes, and other prod
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ucts?
A. Fungi
B. Viruses
C. Protozoa
D. Bacteria
ANS: D f
, Feedback
A Fungican make antibiotics butnotthese products.
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B Virusesgrow inside living cellsand donotmake such products.
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C Protozoa arenot very efficientin making such products.
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D Bacteria make these and otherproducts when they aregrown in large vats.
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REF: ImportantActivities of Microorganisms, page3
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6. Which microbes are used to make pickles out of cucumbers?
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A. Bacteria or fungi f f
B. Fungi or viruses
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C. Virusesoryeasts f f
D. Bacteria or viruses f f
ANS: A f