Immunoglobulins

What are immunoglobulins (Ig)?

Antibodies produced by plasma cells that play a critical role in the immune response.

What is the most abundant class of immunoglobulin?

IgG

What is the primary role of IgG?

Important for long-term immunity.

Where can IgA be found in the body?

In mucosal areas such as the gut and respiratory tract, as well as in saliva and breast milk.

What is unique about IgM?

It is the first antibody produced in response to an infection.

What role does IgE play in the immune system?

Involved in allergic reactions and responses to parasitic infections.

What is the function of IgD?

Functions mainly as a receptor on B cells that have not been exposed to antigens.

Which immunoglobulin is produced first during an infection?

IgM.

What is the role of immunoglobulins in the immune response?

They recognize and bind to specific antigens such as bacteria and viruses.

How many main classes of immunoglobulins are there in humans?

Five.