Antibodies that render the antigenic infective agent noninfe

Antibodies that render the antigenic infective agent non-infective are referred to as:

agglutins

complement- fixing antibodies

precipitins

opsonins

neutralizing antibodies

Solution

Answer C: Neutralizing antibodies

The antibodies that inactivate the infective agent of an antigen are known as neutralizing antibodies. An example of a neutralizing antibody is diphtheria antitoxin, which can neutralize the biological effects of diphtheria toxin. Most antibodies work by binding to an antigen, signaling to a white blood cell (WBC) that this antigen has been targeted, after which the antigen is processed and consequently destroyed. The difference between neutralizing antibodies and binding antibodies is that neutralizing antibodies neutralize the biological effects of the antigen, while binding antibodies flag antigens for WBC mediated phagocytes.