Actions of Antibodies

11.2

Actions of Antibodies

There are five ways; neutralization, agglutination, precipitation, opsonization dan lysis.

Action of antibodies	Mode of action
Neutralization	Antitoxin neutralizes the toxins by binding to the toxins (released by pathogens) to prevent the toxins from entering the body cells
Agglutination	Agglutinin binds to the antigens and makes them clump together The clumping of pathogens is destroyed by the phagocytes
Precipitation	Precipitin binds to the dissolved antigens to form an insoluble antibody-antigen complex that will form a precipitate Precipitation of antibody-antigen complex ease the phagocytes to undergo phagocytosis
Opsonization	Opsonin binds to the antigens of pathogen that will form a structure that is easy for phagocytes to recognize. Phagocytes engulf bacteria that have been marked by opsonin
Lysin	Lisin binds to the antigens of pathogen dan will lyse the pathogen