Multiple Choice
Which of the following processes allows for the creation of so many diverse antibodies?
21. The Immune System
Antibody Structure and Diversity
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Which of the following antibodies is secreted into the blood for an allergic reaction?
A
IgM
B
IgD
C
IgA
D
IgE
E
IgG
Verified step by step guidance1
Understand the role of antibodies in the immune system. Antibodies, also known as immunoglobulins, are proteins produced by B cells that help identify and neutralize foreign objects like bacteria and viruses.
Learn about the different classes of antibodies: IgM, IgD, IgA, IgE, and IgG. Each class has a unique role in the immune response.
Focus on IgE, which is specifically involved in allergic reactions. IgE binds to allergens and triggers the release of histamine from mast cells and basophils, leading to symptoms of allergies.
Recognize that IgE is secreted into the blood during an allergic reaction, unlike other antibodies that may have different primary functions.
Review the functions of other antibodies: IgM is the first antibody produced in response to an infection, IgD is involved in the initiation of immune response, IgA is found in mucosal areas, and IgG is the most common antibody in blood and extracellular fluid, providing long-term protection.
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