Antibodies and Other Agents of the Immune System

Recall how antibodies and antigens work together.

Which of these is produced by our bodies to fight off the other? Each immunoglobulin class has distinct chemical characteristics that provide a specific function. For example, IgG antibodies are formed in large quantities. IgM class is antibodies formed in response to infection. IgE is responsible for allergic reactions. IgA is produced near mucus membranes and finds its move to body fluids, where they fight against infection in the respiratory tract and intestines. What do you think makes each antibody specific?