Microbiology MCQs

Page No. 33

When horse serum is injected intravenoulsy in to a rabbit and again in to the skin two or three weeks later, what is the necrotizing reaction that occurs as the site of the second injection________________?


a Atopy


bAnaphylaxis


cArthus phenomenon


dSerum sickness


View Answer Arthus phenomenon

Negative phase is seen in ________ immunity?


aActive


bPassive


cHerd


dLocal


View Answer Active

The cell wall deficient bacteria_______________?


aRickettsiae


bMycoplasma


cChlamydiae


dEhrlichiae


View Answer Mycoplasma

Antibiotic sensitivity and resistance of micro organisms is determined by________________?


aDirect microscopy


b Culture


cELISA


dDNA probe


View Answer Culture

Chemotactic cytokine is_________________?


aIL-1


b IL-6


cIL-8


dTNF


View Answer IL-8

Components of innate immunity that are active against viral cells includes______________?


aNK Cells


bCytotoxic T cells


cB cells


dMemory B cells


View Answer NK Cells

Which of the following is not used as disinfectant________________?


a1-2% cetrimide


b100% alcohol


c2% Lysol


d5% chloroxylene


View Answer 100% alcohol

Anaphylaxis refers to the________________?


aSevere reaction following the injection of protein solution in a sensitized individual


b Severe reaction following primary injection of Protein solutions


cState of immunity developed by repeated injections of any foreign substance


dSevere reaction resulting from sensitivity to common allergens



Out of the following hypersensitivity reactions, in which type a single dose of the antigen can act as both the sensitizing and shocking dose_______________?


aAnaphylaxis


bArthus reaction


cSerum sickness


dContact dermatitis


View Answer Serum sickness

Stain used to make the wetted area of filter paper strip more visible is_____________?


aEosin stain


bHaemotoxin stain


c Ninhydrin stain


dBlue stain


View Answer Ninhydrin stain

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