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Bacteria and Gram Staining- Part 7
See all quizzes of Bacteria anh Gram staining- Part 7 here:
1 The microorganism engulfed by phagocyte
resides in a vacuole is known as
a. Phagosome b. Lysosome
c. both a and b d. None of these
2. Toxic products in phagolysosome are
a. H2SO4
b. Singlet O2
c. Superoxide radicals
d. All of these
3. During destruction of antigen particle in
phagolysosome the product formed in
phagolysosome the product formed
during formulation is
a. Acetic acid b. Lactic acid
c. Citric acid d. None of these
4. The coating of a bacterium with antibody
or complement that leads to enhanced
phagocytosis of the bacterium by
phagocytes is called
a. Opsonisation b. Aggulation
c. CFT d. None of these
5. Attenuation means
a. Killing of the bacteria (microorganism)
b. Inactivation of bacteria
c. More activating the bacteria
d. Both 1 and 2
6. Infection that results in pus formation are
called
a. Focal infection b. Acute infection
c. Pyogenic infection d. Chronic infection
7. Presence of viable bacteria in the blood
stream is called
a. Viraemia b. Septicaemia
c. Bacteraemia d. Bactericidal
8. Presence of viruses in the blood stream
is known as
a. Viraemia b. Bacteraemia
c. Septicaemia d. Pyemia
9. Opsonin is the
a. Cellwall component
b. Plasma component
c. Serum component
d. Cytoplasm component
10. β-haemolytic bacteria is
a. Streptococcus pyogenes
b. Str. pneumoniae
c. Str. viridans
d. Str. faecalis
11. The natural reservoir of infection for
cholera is
a. Flies b. Horse
c. Man d. None of these
12. Main cause for Cholera is
a. Poverty and insanitation
b. Mosquitoes
c. Toxin produced by pesticides
d. None of these
13. Vibrio cholera differs from vibrio eltor by
a. It shares some Inaba, Ogawa subtypes with eltor
b. Resistant to polymuxin
c. Eltor is non-motile
d. Causes less subclinical infections as compared
to eltor
14. Cholera vaccine gives protection for
a. 1 – 3 months b. 3 – 6 months
c. 6 – 9 months d. 9-12 months
15. Prophylaxis of cholera is
a. Protected water supply
b. Environmental sanitation
c. Immunisation with killed vaccines
d. All of these
16. Sh.dysenteriae is also known as
a. Sh.shiga
b. Sh.schmitzi
c. Both a and b
d. Sh.para dysenteriae
18. Acid fast bacteria are
a. Neisseria b. Staphylococci
c. Mycobacteria d. All of the above
19. Mycobacteria are stained with
a. Gram’s staining
b. Simple staining
c. Both a and b
d. Ziehl – Neelsen’s staining
20. Niacin test is positive in case of
a. Corynebacterium
b. M. tuberculosis
c. M. bovis
d. M. avium
21. Lepromin test
a. Is negative in tubercular leprosy
b. Positive in lepromatous type
c. Indicated delayed hypersensitivity test
d. Indicates infection
22. Streptococcus forms causes which type of
infections?
a. Fever b. Zoonotic
c. Pyogenic d. None of these
Streptolysin O is inactivated by
a. CO2 b. Nitrogen
c. Oxygen d. Serum
23. Streptolysin ‘S’ is
a. Oxygen unstable b. Thermostable
c. Oxygen stable d. None of these
24. Influenza virus is identified by using
a. Haemaggulutinin inhibition test
b. Tissue culture method
c. Embryonated eggs
d. Plaque formation
25. Growth of influenza virus is identified by
a. Cytopathic effects b. Hela cells
c. Both a and b d. None of these
26. Glutamic acid is oxidized by the species
except
a. B. abortus b. B. melienasis
c. B. suis d. B.canis
27. “Prozone phenomenon” is encountered
in
a. A typical mycobacteria
b. Brucella
c. Streptococcus
d. Bordetella pertusis
28. Of the following, this is a capsulated
organism
a. Bacillus anthracis b. Escherichia-coli
c. Corynebacterium d. Brucella
29. Anthrax is a
a. Vector borne b. Zoonotic infection
c. Wound bone d. Soil borne
