Antibodies bind with toxins produced by bacteria and neutralise the toxin.

Antibodies react with dissolved antigens to form an insoluble complex (precipitate) that is easily destroyed by phagocytes.

Antibodies combine with antigens and act as a marker for phagocytes to recognise the antigens and destroy them.

Antibodies combine with antigens and cause bacteria to be broken down and decomposed.

Antigens are destroyed by antibodies through several mechanisms that involve the process of agglutination, neutralisation, precipitation, opsonisation and lysis.

Agglutination, neutralization, precipitation, opsonisation, and lysis.