Physical and Chemical Agents The time in minutes at a specific temperature needed to kill a population of cells is the thermal death temperature decimal reduction time F value thermal death point thermal death temperature decimal reduction time F value thermal death point ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following was the first widely used antiseptic and disinfectant? Chlorine Alcohol Iodine Phenol Chlorine Alcohol Iodine Phenol ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following is not a disinfectant containing a heavy metal? Chlorine Silver nitrate Mercurochrome Copper sulfate Chlorine Silver nitrate Mercurochrome Copper sulfate 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? Mesophile Obligate Aerobe Acidophile Obligate Anaerobe Mesophile Obligate Aerobe Acidophile Obligate Anaerobe ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following describes the effect of ionizing radiation on microbes? None of these Induces electrons and protons to jump out of the molecules of the microbe Changes the 3-dimensional structure of proteins to a 2-dimen-sional form Substantially decreases enzymatic activity, slowing microbial reproduction None of these Induces electrons and protons to jump out of the molecules of the microbe Changes the 3-dimensional structure of proteins to a 2-dimen-sional form Substantially decreases enzymatic activity, slowing microbial reproduction ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following skin disinfectant(s) is/are most frequently used? Both (a) and (b) none of these Ethyl alcohol Isopropyl alcohol Both (a) and (b) none of these Ethyl alcohol Isopropyl alcohol ANSWER DOWNLOAD EXAMIANS APP
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