Microbiology MCQs

Page No. 9

Signs of tyhoid fever is/are_____________________?


aHaemorrhage

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b perforation

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cOsteomyelitis

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dAll of the above

✓


View Answer All of the above

The structure in involved in bacterial attachment to cell surface is_______________?


aCapsule

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bFimbria

✓


cFlagella

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dNone of the above

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View Answer Fimbria

Electron microscopic examination of the bacterial flora of necrotising ulcerative gingivitis indicates the presence of microorganisms within non-necrotic tissues in advance of other bacteria. The organisms involved are______________?


aCocci

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bSpirochetes

✓


cBacteriophages

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dFilamentous rods

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View Answer Spirochetes

The following are applicable to bacterial genoms except________________?


aIt is composed of DNA

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bIt doe not contain histones

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cIt is circular

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dIts DNA has both introns and extrons

✓



Each of the following can cause food poisoning except________________?


aCl. difficile

✓


bStaphylococcus

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cCl. welchii

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dCl. botulinum

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View Answer Cl. difficile

The bacterial cell wall has all of the following properties except______________?


aIt consists of a mixed polymer called peptidoglycon

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b is the structure principally responsible for the reaction of gram staining

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cIt is a unique flexible plastic structure

✓


dIt contains D-isomers of amino acids

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Anaerobic bacteria grow_______________?


ain the presence of oxygen

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bin the presence of nitrogen

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cin the absence of oxygen

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ddifferential media

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Phage conversion is required for________________?


aTularemia

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bDiptheria

✓


cGonorrhoea

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d All o f the above

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View Answer Diptheria

Wasserman test test is diagnostic of__________________?


aSyphilis

✓


bGonorrhea

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c TB

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dTyhoid

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View Answer Syphilis

Bacteria with potent exotoxin is_______________?


aClostridium tetani

✓


bPseudomonas

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cShigella

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dKlebsiella

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View Answer Clostridium tetani

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