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.Management Sciences
Category: Bacteriology
Toxic shock syndrome is due to the following virulence factor_____________?
0
A. M protein
B. Pyrogenic exotoxin
C. Streptolysin 0
D. Carbohydrate cell wall
In T.B cell mediated immunity is by_______________?
A. CD 4*
B. CD 8*
C. B – lymphocytes
D. None of the above
For uniform staining reaction, morphology and biochemical activity it is advisable to study bacterial cultures during the_____________?
A. Lag phase
B. Death phase
C. Stationary phase
D. Logarithmic phase
Which of the following have the capability to produce extra cellular polysaccharides______________?
A. Strep. Mutans
B. Strep. pyogenes
C. Peptostreptococcus
D. Enterococcus
Opacity around colonies of Clostridium perfringens is due to_________________?
A. Theta toxin
B. Lecithinase
C. Desmolase
D. Cytokinin
All of the following organisms are known to survive intracellularly except_____________?
A. Neisseria meningitides
B. Salmonella typhi
C. Streptococcus pyogenes
D. Legionella pneumophila
Pathogenesis of diphtheria is attributed to__________________?
A. Invasion
B. Endotoxin
C. Exotoxin
D. Capsule
Which of the following fulfil all the criterias of kich’s postulates ?
A. Treponema pallidum
B. Mycobacterium leprae
C. N. gonorrhoeae
D. None of the above
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