Physical and Chemical Agents Which of the following is most effective for sterilizing mattresses and plastic petri plates? Ethylene oxide Ultraviolet radiation Glutaraldehyde Chlorine Ethylene oxide Ultraviolet radiation Glutaraldehyde Chlorine ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Sweet and salty foods frequently don't require refrigeration to prevent spoilage because they have toxic alkaline chemicals insufficient nutrients low pH high concentration of solutes toxic alkaline chemicals insufficient nutrients low pH high concentration of solutes ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following is best used for long term storage of microbial samples when carried out properly? Storage in a freezer at -10°C Storage in a refrigerator on an agar slant Storage on a petri plate at room temperature Storage in a freezer at ultra low temperatures (-70°C) Storage in a freezer at -10°C Storage in a refrigerator on an agar slant Storage on a petri plate at room temperature Storage in a freezer at ultra low temperatures (-70°C) 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 Aerobe Obligate Anaerobe Acidophile Mesophile Obligate Aerobe Obligate Anaerobe Acidophile Mesophile ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following is bactericidal? Membrane filtration Freeze-drying Deep freezing Ionizing radiation Membrane filtration Freeze-drying Deep freezing Ionizing radiation ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following skin disinfectant(s) is/are most frequently used? Isopropyl alcohol none of these Both (a) and (b) Ethyl alcohol Isopropyl alcohol none of these Both (a) and (b) Ethyl alcohol ANSWER DOWNLOAD EXAMIANS APP
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