Microbiology MCQs

Page No. 23

CD4 cells recognize the antigens in association with_____________?


aMHC I

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bMHC II

✖


cMHC III

✓


dB-cell receptor

✖


View Answer MHC II

T cell matures in______________?


aPayers patch

✖


bLymph node

✖


cThymus

✓


dBusra of Fabricius

✖


View Answer Thymus

Which component of the cell wall is responsible________________?


aRegion I

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bRegion II

✖


c Region III

✓


dBoivin antigen

✖


View Answer Region III

Moist heat kills all of the following EXCEPT_______________?


aBrucella

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bMycobacterium

✖


cSalmonella

✖


dCoxiella burnetti

✓


View Answer Coxiella burnetti

One of the following statement about statements about sterilization is not true_______________?


aLiquid paraffin → Dry heat

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bGlass syringes → Boiling at 169°C for 60 min

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cFlash pasteurization of milk → 72° C for 15 seconds, followed quickly by rapid cooling to 13°C for lower

✖


dVaccines → Ethylene oxide

✓



The best method of sterilization of dressing powder is_____________?


aAutoclaving

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bHot air oven

✓


cInspissation

✖


dTyndallization

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View Answer Hot air oven

Physical sterilization was discovered by__________________?


a Robert Koch

✖


bJoeph Lister

✓


cJohn Hunter

✖


dAlexander flemings

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View Answer Joeph Lister

Cleavage of IgG molecule by Papin gives rise to:One Fc fragment and two Fab fragments_______________?


aOne Fc fragment and two Fab fragments

✓


bOne Fc fragment and four Fab fragments

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cTwo Fc fragments and two Fab fragments

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dTwo Fc fragment and one Fab fragment

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The function of IgD is______________?


a Antigen recognition by B cells

✓


bLocalization protection in external secretion

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cCompliment activation

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dReagin activity

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The type of immunoglobulin most commonly increased in multiple myeloma is_______________?


aIgG

✓


bIgA

✖


cIgM

✖


dIgD

✖


View Answer IgG

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