Physical and Chemical Agents A(n)____is used to prevent infection by killing or inhibiting pathogen growth on animal tissues. bacteriostatic agent disinfectant sanitizer antiseptic bacteriostatic agent disinfectant sanitizer antiseptic ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Sweet and salty foods frequently don't require refrigeration to prevent spoilage because they have high concentration of solutes insufficient nutrients low pH toxic alkaline chemicals high concentration of solutes insufficient nutrients low pH toxic alkaline chemicals ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents One drawback to the use of ultraviolet light as a sterilizing agent is its failure to kill microbes located in the center of an object failure to bacterial spores failure to kill bacteria failure to kill microbes in a closed environment failure to kill microbes located in the center of an object failure to bacterial spores failure to kill bacteria failure to kill microbes in a closed environment 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 thermal death temperature thermal death point decimal reduction time thermal death time thermal death temperature thermal death point decimal reduction time thermal death time 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 of the following methods will not sterilize? 121°C at 15 lb/in pressure for 15 to 20 minutes Dry heat at 171°C for 1 to 2 hours 100°C boiling water for 30 minutes Aqueous glutaraldehyde for 10 hours 121°C at 15 lb/in pressure for 15 to 20 minutes Dry heat at 171°C for 1 to 2 hours 100°C boiling water for 30 minutes Aqueous glutaraldehyde for 10 hours ANSWER DOWNLOAD EXAMIANS APP
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