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Category: Bacteriology
The single most important laboratory test for determining the virulence of staphylococci is___________?
A. Mannitol fermentation
B. Hemolysis of sheep erythrocytes
C. Detection of coagulase
D. The catalase test
which of the following is anaerobic_______________?
A. E.coli
B. Bacteroides
C. Pseudomonas
D. Klebsiella
Bacteria with potent exotoxin is_______________?
A. Clostridium tetani
B. Pseudomonas
C. Shigella
D. Klebsiella
Which is not true about vibrio cholera_________________?
A. It is non-halophilic
B. Grows on simple media
C. Man is the only natural host
D. Cannot survive in extracellular environment
Which regards to temperature requirement, most pathogenic bacteria are_____________?
A. Psychrophiles
B. Mesophiles
C. Cryophiles
D. Thermophiles
Organism most frequently associated with urinary tract infections is_________________?
A. Neisseria gonorrhea
B. Escherichia coli
C. T-strain mycoplasma
D. Streptococcus fecalis
Culture medium for corynebacterium diphtheria______________?
A. Loefflers serum slope
B. Mc Conkey
C. Saborauds agar
D. Lowenstein Jensen Medium
Leprosy bacilli can be grown in_________________?
A. Foot paid on nine branded armadilo
B. Tail of guinea pig
C. Testes of albino rats
D. Testes of guinea pig
What is the transport medium for cholera___________________?
A. Tellurite Medium
B. Cary Blair Medium
C. Venkatraman – Ramakrishnan Medium
D. B & C
Encapsulation in bacteria helps in__________________?
A. Spore formation
B. Decreased virulence
C. Prevent their phagocytosis
D. Oxygen effect
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