All of the Following Statements Are True of Direct Fluorescence

question 51

Multiple Choice

All of the following statements are true of direct fluorescence antibody testing EXCEPT:

• A) It uses a dye.
• B) It is used to detect the presence of antigen.
• C) The enzyme reacts with substrate to produce the fluorescence.
• D) Labeled antibodies are used.
• E) It is not a quantitative test.

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Definitions:

Endocytosis

A cellular process where a cell engulfs solid particles or liquids into a pouch which then becomes a vesicle.

Exocytosis

A cellular process in which intracellular vesicles fuse with the plasma membrane to release their contents outside the cell.

Adhesion Junctions

Specialized structures in cells that help in the binding of cells with each other or with the extracellular matrix.

Gap Junctions

Specialized intercellular connections that facilitate the direct transfer of ions and small molecules between the cytoplasms of adjacent cells.