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 best used for long term storage of microbial samples when carried out properly? Storage in a refrigerator on an agar slant Storage in a freezer at -10°C Storage on a petri plate at room temperature Storage in a freezer at ultra low temperatures (-70°C) Storage in a refrigerator on an agar slant Storage in a freezer at -10°C 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 Which disinfectant would be most effective against Staphylococcus found in a blood spill? Cetylpyridinium chloride Phenol None of these Hexachlorophene Cetylpyridinium chloride Phenol None of these Hexachlorophene ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents The lowest temperature that kills all microorganisms in a liquid suspension in 10 minutes is known as the decimal reduction time thermal death temperature thermal death time thermal death point decimal reduction time thermal death temperature thermal death time thermal death point ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Preservation of foods by using salts and sugars works by creating a hypotonic environment raising pH creating a hypertonic environment lowering osmotic pressure creating a hypotonic environment raising pH creating a hypertonic environment lowering osmotic pressure ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following is sterilized with the help of glutaraldehyde? Bronchoscopes Cystoscopes Thermometers All of these Bronchoscopes Cystoscopes Thermometers All of these ANSWER DOWNLOAD EXAMIANS APP
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