Microbiology MCQs

Page No. 3

Group A B-hemolytic streptococcal infection of the pharynx may be followed in some by_____________?


aDiphtheria


bTyphoid fever


cRheumatic fever


dSyphilis


View Answer Rheumatic fever

Which of the following is an acid-fast bacillus_____________?


aMycobacterium bacilli


bTreponema pallidum


cNeisseria gonorrhea


dAll of the above


View Answer Mycobacterium bacilli

Diphtheria is pathogenic only when infected with______________?


aBeta phage


bAlfa phage


cLambda K12


dDelta Phage


View Answer Beta phage

The most common site where organisms are present in a typhoid carrier is______________?


aSpleen


b Gall Bladder


cLiver


dSalivary gland


View Answer Gall Bladder

Gram -ve bacteria stain during gram staining____________?


aBlue color


bRed color


cGreen


dColorless


View Answer Red color

Silver impregnation method of staining is useful to demonstrate_____________?


aBacterial flagella


bSpirochetes


cBoth of the above


dNone of the above


View Answer Both of the above

The temperature required for cultivating mycobacterium________________?


a2 degree


b0 degree


c27 degrees


d37 degrees


View Answer 37 degrees

Salmonella typhi can be isolated at different times from______________?


a Feaces


bBlood


cUrine


dAll of the above


View Answer All of the above

Which of the following characteristics of bacteria is not true?


aUnicellular


bFree living


cHaving either DNA or RNA


dCell wall containing muramic acid



The single most important laboratory test for determining the virulence of staphylococci is___________?


aMannitol fermentation


bHemolysis of sheep erythrocytes


cDetection of coagulase


dThe catalase test



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