Physical and Chemical Agents The time required to kill 90% of the microorganisms in a sample at a specific temperature is the D value decimal reduction time F value thermal death point D value decimal reduction time F value thermal death point ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following material is sterilized by heating at 160°C in a hot air oven for one hour? All of these Swab sticks Oils and jellies All-glass syringes All of these Swab sticks Oils and jellies All-glass syringes ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following describes the effect of ionizing radiation on microbes? Changes the 3-dimensional structure of proteins to a 2-dimen-sional form Induces electrons and protons to jump out of the molecules of the microbe Substantially decreases enzymatic activity, slowing microbial reproduction None of these Changes the 3-dimensional structure of proteins to a 2-dimen-sional form Induces electrons and protons to jump out of the molecules of the microbe Substantially decreases enzymatic activity, slowing microbial reproduction None of these 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 tyndallization inspissation autoclaving none of these tyndallization inspissation autoclaving ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following is sterilized with the help of glutaraldehyde? Thermometers Cystoscopes All of these Bronchoscopes Thermometers Cystoscopes All of these Bronchoscopes ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Preservation of foods by using salts and sugars works by creating a hypotonic environment raising pH lowering osmotic pressure creating a hypertonic environment creating a hypotonic environment raising pH lowering osmotic pressure creating a hypertonic environment ANSWER DOWNLOAD EXAMIANS APP
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