CS/B.Sc.(H)/BT/Gen/Micro-Bio/Mol-Bio/SEM-2/POM-203/2013
2013
PRINCIPLES OF MICROBIOLOGY
Time Allotted : 3 Hours Full Marks : 70
The figures in the margin indicate full marks.
Candidates are required to give their answers in their own words
as far as practicable.
GROUP – A
( Multiple Choice Type Questions )
1. Choose the correct alternatives for any ten of the following :
10x1 = 10
i) Which of the following is true ?
a) Eukaryotes have peptidoglycan cell walls
b) Cyanobacteria have prokaryotic cellular
organisation
c) Paul Berg discovered prions
d) Robert Koch cultured polio virus.
ii) Use of agar as a solidifying agent for microbiological
media was suggested by
a) R. Koch
b) R. J. Petri
c) F. Hesse
d) D. H. Bergy.
iii) Which of the following is most likely to be bactericidal ?
a) Autoclaving
b) Membrane filtration
c) Freeze - drying
d) Deep - freezing.
iv) Pathogenic microorganisms are usually
a) mesophilic
b) thermophilic
c) psychrophilic
d) halophilic.