The antibody most involved in triggering an allergic reaction is
A)immunoglobulin E.
B)gamma globulin.
C)a mast cell.
D)histamine.

Question

Quizplus · Accepted Answer

Immunoglobulin E (IgE) antibodies are responsible for triggering allergic reactions. When an allergen – a foreign substance like pollen, pet dander, or certain foods – enters the body, it binds to IgE antibodies on the surface of mast cells and basophils. This triggers the release of histamine and other chemicals, leading to allergic symptoms like hives, itching, and inflammation. Gamma globulin is a broad term that refers to a class of proteins in the blood that includes several types of antibodies, including IgE. Mast cells are immune cells involved in allergic reactions, but they are not antibodies. Histamine is a chemical released during an allergic reaction, but it is not an antibody.

The Antibody Most Involved in Triggering an Allergic Reaction Is