(A) To sterilize materials, such as media and glassware
(B) To provide a proper temp. for microbes to grow
(C) To prevent sample from contamination
(D) For long term storage of microbes at low temp.
Tag: General Microbiology Mcqs
__ are reactive and unstable substances that readily undergo violent chemical changes.
(A) Toxic
(B) Corrosive
(C) Explosive
(D) Ignitable
Any chemical that can burn and includes both combustible and flammable liquids is called __.
(A) Corrosive
(B) Toxic
(C) Ignitable
(D) Explosive
__ causes visible destruction or irreversible damage to human skin on contact.
(A) Toxic
(B) Carcinogenic
(C) Explosive
(D) Corrosive
__ is used as chemical germicide used on skin.
(A) Disinfectant
(B) Antiseptic
(C) Sterilizer
(D) Moist heat
Membrane filtration method has all the following advantages EXCEPT:
(A) More turbid samples can be processed easily.
(B) Results are available in a shorter period of time.
(C) Larger volumes of sample can be processed.
(D) The results are readily reproducible.
__ is used for microorganism that have no known pathogenic potential like Bacillus subtilis.
(A) BSL-I
(B) BSL-II
(C) BSL-III
(D) BSL-IV
What part of the microscope is used to change the amount of light entering the stage?
(A) Eyepiece
(B) Nosepiece
(C) Diaphragm
(D) Coarse adjustment knob