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

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bAnaphylaxis

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cArthus phenomenon

✓


dSerum sickness

✖


View Answer Arthus phenomenon

Negative phase is seen in ________ immunity?


aActive

✓


bPassive

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cHerd

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dLocal

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View Answer Active

The cell wall deficient bacteria_______________?


aRickettsiae

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bMycoplasma

✓


cChlamydiae

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dEhrlichiae

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View Answer Mycoplasma

Antibiotic sensitivity and resistance of micro organisms is determined by________________?


aDirect microscopy

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b Culture

✓


cELISA

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dDNA probe

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View Answer Culture

Chemotactic cytokine is_________________?


aIL-1

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b IL-6

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cIL-8

✓


dTNF

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View Answer IL-8

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


aNK Cells

✓


bCytotoxic T cells

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cB cells

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dMemory B cells

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View Answer NK Cells

Which of the following is not used as disinfectant________________?


a1-2% cetrimide

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b100% alcohol

✓


c2% Lysol

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d5% chloroxylene

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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

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cState of immunity developed by repeated injections of any foreign substance

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dSevere reaction resulting from sensitivity to common allergens

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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

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bHaemotoxin stain

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c Ninhydrin stain

✓


dBlue stain

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View Answer Ninhydrin stain

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