Sterilization of liquid paraffin is done by______________?
A. Autoclaving
B. Hot air oven
C. UV-Radiation
D. Inspissation
Microbiology
Who first introduced solid media_______________?
Who first introduced solid media_______________?
A. Louis pasteur
B. Robert koch
C. Hensen
D. Ogston
Disinfection of the rooms can be done by using_______________?
Disinfection of the rooms can be done by using_______________?
A. 20% phenol
B. High efficiency particle arrestors
C. 40% formaldehyde vapour
D. Chlorine gas
The component that sensitizes bacteria and virus to UV irradiation_______________?
The component that sensitizes bacteria and virus to UV irradiation_______________?
A. Lipids
B. Carbohydrates
C. Inorganic salts
D. Nucleic acids
The difference between sterilization and disinfection is that_______________?
The difference between sterilization and disinfection is that_______________?
A. Disinfection kills all spores but sterilization does not
B. Sterilization kills all spores but disinfection does not
C. Sterilization involves chemicals and disinfection involves physical methods
D. Sterilization is easier to achieve
Blood agar is________________?
Blood agar is________________?
A. Simple media
B. Transport media
C. Enriched media
D. Differential media
By using phase contrast microscope_______________?
By using phase contrast microscope_______________?
A. Internal structures are differentiated in living cells
B. Internal structures are differentiated in dead cells
C. Internal metabolic activities can be observed
D. External capsule formation can be observed
Exotoxins are____________________?
Exotoxins are____________________?
A. Lipid-polysaccharide complex
B. Protein compound
C. Lipoprotein
D. None
Zero growth rate is observed during one of the phase of the bacterial growth curve______________?
Zero growth rate is observed during one of the phase of the bacterial growth curve______________?
A. Lag
B. Exponential growth
C. Stationary phase
D. Decline
Hot air oven cannot be used for sterlisling___________________?
Hot air oven cannot be used for sterlisling___________________?
A. Clothes
B. Instruments
C. Culture media
D. Needles