Physical and Chemical Agents Sweet and salty foods frequently don't require refrigeration to prevent spoilage because they have low pH high concentration of solutes insufficient nutrients toxic alkaline chemicals low pH high concentration of solutes insufficient nutrients toxic alkaline chemicals ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following describes the effect of ionizing radiation on microbes? None of these Substantially decreases enzymatic activity, slowing microbial reproduction 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 None of these Substantially decreases enzymatic activity, slowing microbial reproduction 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 ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following process can be efficiently carried out by incineration? Destruction of contaminated materials Sterilization of all glass syringes Sterilization of scalpel blades and needles Sterilization of points of forceps Destruction of contaminated materials Sterilization of all glass syringes Sterilization of scalpel blades and needles Sterilization of points of forceps 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 refrigerator on an agar slant Storage on a petri plate at room temperature Storage in a freezer at -10°C Storage in a freezer at ultra low temperatures (-70°C) Storage in a refrigerator on an agar slant Storage on a petri plate at room temperature Storage in a freezer at -10°C Storage in a freezer at ultra low temperatures (-70°C) ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which disinfectant was the most effective against Salmonella"? Merthiolate Cetylpyridinium chloride Hexachlorophene Phenol Merthiolate Cetylpyridinium chloride Hexachlorophene Phenol ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following material is sterilized by use of red heat? Glass slides All-glass syringes Soiled dressings Inoculating wires and loops Glass slides All-glass syringes Soiled dressings Inoculating wires and loops ANSWER DOWNLOAD EXAMIANS APP
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