Which class of antibodies is mainly found in sweat,tears,breast milk and GI secretions?
A)IgG
B)IgA
C)IgM
D)IgD
E)IgE

Question

Quizplus · Accepted Answer

IgA is the class of antibodies that is mainly found in sweat, tears, breast milk, and gastrointestinal secretions. Unlike IgG, which is found primarily in the blood, IgA is a mucosal antibody that provides localized immunity to areas of the body that are exposed to the external environment. IgM is found primarily in the blood and is the first antibody produced during an immune response, while IgD and IgE have specific functions in B cell activation and allergic reactions, respectively.

Which Class of Antibodies Is Mainly Found in Sweat,tears,breast Milk