An antibody reacts to the specific antigen it is made to attach to. It is like the lock and key model; it locks onto the antigen.
Agglutination!
Antibody
epitopes on the antigen while the paratopes on the antibody
No. An antigen is something that an antibody will inactive. It is an antibody inducing agent.
Basically to explain this, an antigen is any type of pathogen that causes disease, while an antibody is something that combats against the antigen.
Antigen is the opposite of antibody.
Surface antigen
An antigen is any substance that causes your immune system to produce antibodies against it. An antigen may be a foreign substance from the environment. If you get a vaccine for rubella, the antibody formed will not act against mumps (another virus).
When an antibody attaches onto an antigen it destroys the antigen to help your body fight off a disease.
Polyclonal antibody
An antigen is a substance that can invoke an immune response. While an antibody is the immune system's response to an antigen. Antibodies, act by directly neutralizing the antigen and/or bind to the antigen and signaling marcophages to phagocytose the antigen.
Antigen binding site or epitope is a part of an antigen that is recognized by the antibody. Paratope is a part of an antibody that binds on epitope.