Explain how the body reacts when there is presence of antigens in the body

Presence of antigens in the body stimulates the lymphocytes to produce corresponding antibodies; the antibodies attack the antigen in the following ways

• Clumps antigen and destroy it/agglutinin
• Causes antigen to disintegrate/lysins.
• Adsorb onto surface of antigens for easier phagocytosis/opsinins
• Neutralizes the toxin/antitoxins
• Precipitates the antigen molecules