Top 80+ Solved Sterilisation, Culture Media and Pure Culture Techniques MCQ Questions Answer
Q. The medium used in membrane filtertechnique was
a. EMB agar
b. EMR-Vp medium
c. Lactose broth
d. Endo agar
Q. Which of the following is a neutral stain?
a. Picric acid
b. Gmiemsa
c. Neutral red
d. Malachite green
Q. Peptone water medium is an example for
a. Synthetic medium
b. Semisynthetic medium
c. Differential medium
d. None of these
Q. The method in which the cells are frozendehydrated is called
a. Pasteurization
b. Dessication
c. Disinfection
d. Lypophilization
Q. The techn ique used to avo id all microorganisms is accomplished by
a. Sterlization
b. Disinfection
c. Surgical sterilization
d. Disinfection Sterilization
Q. Thermal death time is
a. Time required to kill all cells at a given temperature
b. Temperature that kills all cells in a given time
c. Time and temperature needed to kill all cells
d. All of the above
Q. A culture medium the exact compositionof which is not known was called as
a. Simple
b. Complex
c. Defined
d. Natural
Q. Elek’s gel diffusion test is used for the detection of
a. Tetani toxin
b. Cholera toxin
c. Diophtheria toxin
d. Toxoid
Q. Temperature required for pasteurizationis
a. Above 150oC
b. Below 100oC
c. 110oC
d. None of these
Q. Separation of a single bacterial colony iscalle
a. Isolation
b. Separation
c. Pure culturing
d. All of these
Q. Wh ich of the fo l low ing inducesdimerisation of thymine?
a. X-ray
b. U.V. rays
c. ã-rays
d. None of these
Q. When food material are preserved at a temperature just above freezing temperature, the process is called.
a. Freezing
b. Pasteurisation
c. Chilling
d. Frosting
Q. Wh ich of the fo l low ing method ofsterilization has no effect on spores?
a. Drying
b. Hot air oven
c. Autoclave
d. None of these
Q. Treponema pa l l idum can be bestindentified using
a. Fluorescence microscope
b. Bright field microscope
c. Dark field microscope
d. Flourescence microscope