The binding of an antigen to an antibody can result in
A) neutralization of the antigen.
B) agglutination or precipitation.
C) complement activation and opsonization.
D) all of the above
E) none of the above

Question

Quizplus · Accepted Answer

All of the choices (neutralization, agglutination/precipitation, complement activation and opsonization) are possible outcomes of antigen-antibody binding. Neutralization occurs when the bound antibody prevents the antigen from interacting with a host cell or receptor. Agglutination/precipitation refers to the clumping of antigens that have been bound by antibodies, which can facilitate their removal by immune cells. Complement activation can be triggered by the bound antibody, leading to the formation of a membrane attack complex that lyses the target cell. Opsonization involves the coating of the antigen with antibodies, making it more recognizable to phagocytic cells for uptake and destruction.

The Binding of an Antigen to an Antibody Can Result