Which of the following characteristics of bacteria is not true?
(A) Unicellular
(B) Free living
(C) Having either DNA or RNA
(D) Cell wall containing muramic acid
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 have the capability to produce extra cellular polysaccharides______________?
(A) Strep. Mutans
(B) Strep. pyogenes
(C) Peptostreptococcus
(D) Enterococcus
Tuberculin test screens for_____________?
(A) Hemoral immunity
(B) Cell mediated immunity
(C) Complement function
(D) Phagocyte dysfunction
Granules in the corynebacterium diphtheria are called by following names, except______________?
(A) Metachromatic granules
(B) Refractile granules
(C) Babes Ernst granules
(D) Voluntin granules
Culture medium for corynebacterium diphtheria______________?
(A) Loefflers serum slope
(B) Mc Conkey
(C) Saborauds agar
(D) Lowenstein Jensen Medium
Virulence of Gonococcus is due to___________________?
(A) Pili
(B) Cell Membrane
(C) Its intracellular location
(D) Cytolytic enzymes
Which regards to temperature requirement, most pathogenic bacteria are_____________?
(A) Psychrophiles
(B) Mesophiles
(C) Cryophiles
(D) Thermophiles
A protoplast is best characterized as a bacterial cell______________?
(A) with a cell wall but free of a capsule
(B) containing a cell wall and a capsule
(C) Free of a cell wall and a capsule
(D) Uniquely sensitive to penicillin