Become a Certified Fairyologist! In Doreen Virtue's exciting and entertaining new video course, you'll learn all about the fairies, including their history, lineage, myths, multi-cultural aspects, other elementals, and how to connect with and receive messages from fairies, including how to see and photograph fairies.
Endogenous vs Exogenous Antigens. Any molecule or substance that reacts to a product of a specific immune response and stimulates antibody generation is considered as an antigen.The antibody generation by an antigen is called antigenicity of that particular molecule.Antigens can be either a protein or a polysaccharide.he vast majority of antigens are exogenous antigens. They are introduced into the body from outside via various infections agents such as bacteria, viruses, fungi, protozoa, helminthes etc., or environmental substances such as dust mites, foodstuff, pollen etc. by inhalation, ingestion, or injection.
The modern definition encompasses all substances that can be recognized by the adaptive immune system. In the strict sense, immunogens are those substances that elicit a response from the immune system, whereas antigens are defined as substances that bind to specific antibodies.Not all antigens produce an immunogenic response, but all immunogens are antigens. Antigens are usually proteins or polysaccharides.ntigens are any proteinaceous substances that enter into our body and elicit an immune response and antibodies are the substances that are produced by the body's immune system to fight against these anigens.... Shanti Â· 7 years ago. Thumbs up. 2. Thumbs down. 1.