Physical and Chemical Agents Which of the following describes the effect of ionizing radiation on microbes? Changes the 3-dimensional structure of proteins to a 2-dimen-sional form None of these Induces electrons and protons to jump out of the molecules of the microbe Substantially decreases enzymatic activity, slowing microbial reproduction Changes the 3-dimensional structure of proteins to a 2-dimen-sional form None of these Induces electrons and protons to jump out of the molecules of the microbe Substantially decreases enzymatic activity, slowing microbial reproduction ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents For sterilization of which material gamma rays can be used? Plastic syringes Canulas None of these Catheters Plastic syringes Canulas None of these Catheters ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents If a 1:600 dilution of a test compound kills a standard population of Staphylococcus aureus in 10 minutes but not 5 minutes while a 1:60 dilution of phenol kills the population in the same time, what is the phenol coefficient of the test compound? 1 10 5 50 1 10 5 50 ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Ethylene oxide is used to destroy or kill which of the following microbes? Fungi Spores Bacteria All of these Fungi Spores Bacteria All of these ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following has most heat resistant spores? Clostridium histolyticum Clostridium perfringens Bacillus stearothermophilus Bacillus cereus Clostridium histolyticum Clostridium perfringens Bacillus stearothermophilus Bacillus cereus ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following is a limitation of the autoclave? It lacks the ability to kill endospores It takes too long to sterilize It will destroy heat labile materials It lacks the ability to inactivate viruses It lacks the ability to kill endospores It takes too long to sterilize It will destroy heat labile materials It lacks the ability to inactivate viruses ANSWER DOWNLOAD EXAMIANS APP
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