The Principal Job of A(n) _______ is to Recognize and Bind

Question

The principal job of a(n) _______ is to recognize and bind to a specific antigen.
A) plasma cell
B) antibody
C) memory B cell
D) helper T cell

Accepted Answer

Antibodies, also known as immunoglobulins, are proteins produced by B cells that recognize and bind to specific antigens. Plasma cells are the cells that produce antibodies. Memory B cells are B cells that have been activated by an antigen and have become "programmed" to recognize andrespond to that antigen more quickly in the future. Helper T cells are a type of T cell that helps activate and direct other cells of the immune system, but they do not directly recognize and bind to antigens like antibodies do.