Home Preparation for National Talent Search Examination (NTSE)/ Olympiad
Chapter : 3. Transportation
Important Terms
Important Terms : The following terms should be clearly understood before studying blood group. (A) Antigen : A substance capable of stimulating the formation of an antibody is called antigen. It is any substance, a bacteria or virus, that the body regards as foreign and it may be formed in or introduced into the body, it is capable of causing some disease in the body and are present in the red blood cells of the donor. (B) Antibody : It is specialised protein produced by certain white blood cells (lymphocytes) in response to entry into the body of a foreign substance. i.e. antigen in order to render it harmless.