This task contains 20 questions.
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Which the the adhering to microbial manage procedures create pyrimidine dimers in DNA?
autoclaving
nonionizing radiation
heavy metals
ionizing radiation
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is a halogen that serves as an efficient disinfectant in warm tubs.

You are watching: Antimicrobial agents that damage the viral envelope __________.

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Which that the following items would frequently be sanitized?
skin
milk
restaurant utensils
surgical instruments
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Control agents that contain heavy metals work-related by binding to cysteine molecules in microbial proteins.
TrueFalse
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Which that the adhering to methods will damage bacterial endospores?
antisepsis
sterilization
pasteurization
sanitization
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is a phenolic compound that has been integrated into together consumer commodities as rubbish bags and also diapers.
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Which that the adhering to statements concerning microbial death is CORRECT?
It deserve to be plotted top top a semilogarithmic graph.
It is a lose of reproductive capability that lasts because that 12 to 24 hours.
It is the very same for every microbes under all conditions.
It starts rapidly, and then gradually slows until it stops.
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Sodium hypochlorite is an instance of a halogen-containing antimicrobial agent.
TrueFalse
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All that the adhering to would contribute to the increased efficiency of an antimicrobial agent except __________.
higher concentration of the agent
higher temperatures
longer exposure come cells
higher pH
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The significant difference in between disinfection and also sanitization is the setup in which the task takes place.
TrueFalse
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An experimental disinfectant has a phenol coefficient that 10 against E. Coli. I m sorry of the complying with is the most accurate translate of this data?
Nothing deserve to be concluded till an in-use check is done.
The disinfectant is worse 보다 phenol.
The disinfectant is far better than phenol.
The disinfectant is 10 times far better than phenol.
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organisms room microbes that can survive the warmth of pasteurization.
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Which that the following tests offers the most accurate photo of the task of a disinfectant in a details environment or application?
the in-use test
the phenol coefficient
the Kelsey-Sykes capacity test
the use-dilution test
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Surfactants room antimicrobial agents the contain alcohol to do them much more effective.
TrueFalse
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Antimicrobial agents the disrupt the cabinet membrane will also damage __________.
cellular enzymes
the famous envelope
the cell wall
cellular DNA
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A(n) equipment of sugar or salt have the right to preserve honey, jerky, jams, and pickles.
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Which that the following organisms would still be existing in a equipment sterilized by filtration v a filter through 0.45 µm pores?
protozoa
viruses
bacteria
yeasts
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is a reactive form of oxygen produced by subjecting molecule oxygen to an electrical discharge.
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Pure (100%) alcohol is the many effective kind of alcohol for use as one antimicrobial agent.
TrueFalse
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Which that the following statements worrying autoclaving is INCORRECT?
Any product that demands to it is in sterilized need to be autoclaved.
Under 15 psi that pressure, water boils in ~ 121°C.
Large volumes or hard substances require longer autoclaving times.

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For an object to be sterilized in an autoclave, vapor must contact every one of its surfaces.
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