Physical and Chemical Agents Which of the following is/are vapour-phase disinfectant/s? Ethylene oxide None of these Formaldehyde Both (a) and (b) Ethylene oxide None of these Formaldehyde Both (a) and (b) ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following has most heat resistant spores? Bacillus stearothermophilus Clostridium histolyticum Bacillus cereus Clostridium perfringens Bacillus stearothermophilus Clostridium histolyticum Bacillus cereus Clostridium perfringens ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following describes the effect of ionizing radiation on microbes? 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 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 ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Steam exposure of a material at 100°C for 20 minutes for three consecutive days is known as none of these autoclaving inspissation tyndallization none of these autoclaving inspissation tyndallization ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following is a limitation of the autoclave? It will destroy heat labile materials It lacks the ability to inactivate viruses It takes too long to sterilize It lacks the ability to kill endospores It will destroy heat labile materials It lacks the ability to inactivate viruses It takes too long to sterilize It lacks the ability to kill endospores ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents The time in minutes at a specific temperature needed to kill a population of cells is the thermal death point decimal reduction time F value thermal death temperature thermal death point decimal reduction time F value thermal death temperature ANSWER DOWNLOAD EXAMIANS APP
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