Top 80+ Solved Sterilisation, Culture Media and Pure Culture Techniques MCQ Questions Answer
Q. The bacterial culture prepared by pureculture method is
a. Inoculum
b. Suspension
c. Dilution
d. None of these
Q. L-Lysine is produced from
a. Corynebacterium glutamicum
b. Clostridium botulinum
c. Mycobacterium sps
d. Pseudomonas
Q. The orderly increase in the quantity of allof the cellular components is known as
a. Reproduction
b. Growth
c. Binary fission
d. None of these
Q. Slow freezing requires the conditions
a. 0oC to 15oC for 15 min.
b. – 6 oC to – 10oC for 10 min.
c. – 15oC to 3 to 72 hrs.
d. None of these
Q. Discontinuous heating is called
a. Pasteurization
b. Sterilization
c. Fermentation
d. Tindalisation
Q. Isolation is
a. Purification of culture
b. Introduction of inoculum
c. Separation of a single colony
d. To grow microorganisms on surfaces
Q. The condition required for autoclave
a. 121oC temp.and 15 lbs. pressure for 20 min.
b. 120oC temp.and 20 lbs. pressure for 30 min
c. 150oC temp.for 1 hr.
d. 130oC temp for 2 hr.
Q. Lysozyme is effective against
a. Gram negative bacteria
b. Gram positive bacteria
c. Protozoa
d. Helminthes
Q. Blood agar medium is
a. Enrichment medium
b. Enriched medium
c. Selective medium
d. Differential medium
Q. Infrared radiation is a method of sterilization by
a. Dry heat
b. Moist heat
c. Chemical method
d. Mechanical method
Q. Lyophilization means
a. Sterilization
b. Freeze-drying
c. Burning to ashes
d. Exposure to formation