Physical and Chemical Agents Which of the following articles can be sterilized in an autoclave? Dressing material All of these Gloves Culture media Dressing material All of these Gloves Culture media ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Preservation of foods by using salts and sugars works by lowering osmotic pressure creating a hypotonic environment raising pH creating a hypertonic environment lowering osmotic pressure creating a hypotonic environment raising pH creating a hypertonic environment 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? 50 10 5 1 50 10 5 1 ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents If a canning procedure is not properly followed, which type of microbe is most likely to grow in the canned food? Obligate Anaerobe Obligate Aerobe Acidophile Mesophile Obligate Anaerobe Obligate Aerobe Acidophile Mesophile ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following describes the effect of ionizing radiation on microbes? 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 Changes the 3-dimensional structure of proteins to a 2-dimen-sional form None of these ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Ethylene oxide is used to destroy or kill which of the following microbes? Spores Fungi All of these Bacteria Spores Fungi All of these Bacteria ANSWER DOWNLOAD EXAMIANS APP
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