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15 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Decontamination is defined as the...
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b. reduction or removal of unwanted chemical or biological agents
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a. killing of all microorganisms in a given area
b. reduction or removal of unwanted chemical or biological agents c. stopping of growth of microorganisms in a given area d. removal of all vegetative organisms |
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Which of the following organisms has higher resistance to most physical control methods than the others?
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a. protozoan cysts
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a. protozoan cysts
b. fungal spores c. enveloped viruses d. vegetative bacterial cells |
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The cleaning of glassware and tableware in restaurants falls in the category of...
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d. sanitation
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a. degermination
b. sterilization c. disinfection d. sanitation |
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Which of the following methods is the simplest heat-related method to sterilize metal?
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c. direct flaming
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a. boiling
b. autoclaving c. direct flaming d. indirect heating |
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Boiling items in water for ___ minutes will kill most vegetative bacteria and viruses.
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d. 10-15
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a. 3-5
b. 5-6 c. 6-8 d. 10-15 |
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The technique that combines freezing and drying to preserve microbes and other cells is:
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b. lyophilization
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a. desiccation
b. lyophilization c. pasteurization d. radiation |
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Ionizing radiation involves all of the following except:
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a. UV light
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a. UV light
b. gamma rays c. electron beams d. x-rays |
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The term "zone of inhibition" is used in which of the following procedures?
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c. disk-diffusion test
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a. use-dilution test
b. growth inhibition test c. disk-diffusion test d. multiple inhibition test |
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Chlorine belongs to which of the following chemical groups?
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a. halogens
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a. halogens
b. heavy metals c. phenols d. alcohols |
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All of the following are methods for food preservation except:
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b. sterilization
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a. pasteurization
b. sterilization c. irradiation d. ultrahigh-temperarure pasteurization |
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The destruction of vegetative organisms by chemical or physical methods is called ___.
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disinfection
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The term used to describe an agent that causes microbial growth to come to a standstill is _____.
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microbiostatic
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The lowest temperature by which all microorganisms in a particular liquid will be killed within ten minutes is the _____.
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thermal death point
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Antimicrobial agents that are specifically designed to be used on living tissues are referred to as _____.
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antiseptic
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Agents that kill microbes are classified as...
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microbicidal
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