The oral cavity is one of a complex, heterogeneous microbial habitat. Saliva contains microbial nutrients, but it is not an especially good growth medium because the nutrients are present in low concentration. Also the saliva contains antimicrobial substances. Saliva contains an enzyme lysozyme that cleaves glycosidic linkages in peptidoglycan present in the bacterial cell wall, … Read more
Immunoglobulins are specialized serum proteins which are produced in response to an antigen and react with that antigen specifically. It may also react with the very closely related antigen as well. They are found in various secretions of body and some are fixed to body cells or tissues in addition to humoral antibodies. They are … Read more
Introduction They are an integral part of protoplasm and hence are present in every living cell. They account for 14% part of living and 75% part of dead and dried animal body. These are the major components of the body and more important for anabolism than for catabolism. These are compounds of C, H and … Read more