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

Question

Quizplus · Accepted Answer

Immunoglobulin E (IgE) is the antibody most involved in triggering an allergic reaction. When an allergen enters the body, IgE antibodies bind to it and trigger the release of histamine and other chemicals from mast cells, leading to the characteristic symptoms of an allergic reaction. Gamma globulin is a general term for all types of antibodies, and while they can play a role in immune responses, they are not specifically involved in allergies. Mast cells are specialized cells involved in the immune response, but they are not antibodies. Histamine is a chemical mediator released from cells, not an antibody.

The Antibody Most Involved in Triggering an Allergic Reaction Is