The Portion of the Immunoglobulin Molecule That Determines Class Is

question 52

Multiple Choice

The portion of the immunoglobulin molecule that determines class is the:

• A) light chain.
• B) kappa chain.
• C) lambda chain.
• D) heavy chain.

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Definitions:

Blood-brain barrier

A semipermeable barrier of endothelial cells that prevents most substances in the blood from entering the brain, protecting it from pathogens and toxins.

Motor tremors

Involuntary, rhythmic muscle movements involving to-and-fro movements of one or more parts of the body.

Pia mater

The delicate innermost layer of the meninges that directly covers the surface of the brain and spinal cord, providing it with blood vessels.

Meninges

The three protective membranes that cover the brain and spinal cord, consisting of the dura mater, arachnoid mater, and pia mater.