Which of the following statements about evaluating the effectiveness of chemical agents is false?
A) phenol coefficient can be used to evaluate the efficacy of phenol derivatives
B) materials present can complex with or inactivate a chemical agent during the phenol coefficient test
C) in the filter paper test, a clear area around the disk indicates a prevention of microorganism growth but not killing of microbes
D) the use-dilution test is considered to be more meaningful than the phenol coefficient
Correct Answer:
Verified
Q6: The use of phenol as a standard
Q13: What is the most susceptible phase of
Q17: Agents that adversely affect nucleic acids and
Q18: When an antimicrobial agent permanently denatures proteins
Q19: Disinfection is the
A) killing of certain microorganisms
Q22: Alcohols:
A)oxidize disulfide bonds
B)dissolve lipids and denature proteins
C)alter
Q23: Ionizing radiation
A) consists of wavelengths between 400
Q23: Denaturation of proteins by antimicrobial agents _.
A)prevents
Q24: Which of the following involves sterilization by
Q27: Ultrahigh temperature (UHT)processing does not involve:
A)treating small
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