A Vaccine to Provide Active Immunity to HBV Is Prepared

question 42

Multiple Choice

A vaccine to provide active immunity to HBV is prepared from

• A) viruses grown in embryonated eggs.
• B) pooled gamma globulin.
• C) viruses grown in tissue culture.
• D) viral particles in patients.
• E) genetically modified yeast.

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Definitions:

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.

Tight Junctions

Specialized connections between neighboring cells that create a barrier to prevent the leakage of molecules across cell layers.