Deck 10 Flashcards

1
Q

Visible clumping – agglutination. Agglutination is used to determine presence of antibodies/antigens
Agglutination reaction is a reaction between:

A) Corpuscular antigen and monoclonal antibody
B) Soluble antigen and monoclonal Ab
C) Corpuscular Ag and polyclonal Ab (X)
D) Soluble Ag and polyclonal Ab

A

Corpuscular Ag and polyclonal Ab

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2
Q

Which of the following immunodiffusion assays is for quantitative determination of Ag?

A) Oudin’s tube precipitation
B) Single radial immunodiffusion (X)
C) Double radial immunodiffusion (ouchterlony’s precipitation)
D) Ascoli termo precipitation

A

Single radial immunodiffusion

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3
Q

What is a conjugate?

A

Ab labelled with enzyme

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4
Q

Draw the scheme of blocking ELISA for detection of Ab
(NOTES)

A

check notes

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5
Q

Which component is used for IFA? (Immunofluorescent assay):

A) Ab labelled with fluorochrome (X)
B) Ab labelled with peroxidase
C) Ab labelled with alkaline phosphatase
D) Ab labelled with radioisotope

A

Ab labelled with fluorochrome

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6
Q

Polymorponuclear cells are:

A) Monocytes, lymphocytes, NK cells
B) Neutrophils, basophils, eosinophils (X)
C) Basophils, mast cells, lymphocytes
D) macrophages, eosinophils, neutrophils

A

Neutrophils, basophils, eosinophils

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7
Q

Size of the cells in flow cytometer is detected by:

A

Forward scatter

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8
Q

For determination of number of leukocytes the blood is

A

Diluted in Türk solution (1:20)

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9
Q

Calculate the phagocytic activity if from 100 counted phagocytes 65 cells have ingested material:

A

% PHA = (65 / 100) * 100 = 65%

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10
Q

What is a main purpose of respiratory burst in phagocytes?

A) Creation of oxidative products for increase of metabolic activity of …
B) Creation of oxidative radicals which destroy ingested material (X)
C) Oxidation of membrane bound phospholipids
D) Activation of oxidases

A

Creation of oxidative radicals which destroy ingested material

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