what is the composition of antigens
Antigen. â¢ Antigens are simple or complex foreign substances, which may be organic, inorganic or biological agents and they. â¢ Enhances â¢ Provokes â¢ Elicits. â¢ the immune response when they enters in the body pareneterally. 2. Antigen. â¢ The word Parenteral (par-beyond) and (Enteron git) is used in definition because orally administered antigens are usually denatured by digestive enzymes and their antigenicity is destroyed.