Antigen and its types
A protein or carbohydrate that evokes our immune system and initiates the immune response is called an immunogen. Immunogens are associated with an infectious agent […]
Immunology
Differences between active and passive immunity
S.N. Active immunity Passive immunity 1. Host itself produces antibodies to provide immunity. The antibodies produced in other hosts in passively received by the host. […]
Primary and secondary immune response
When an antigen is introduced for the first time in a host, it activates T and B cells. Activation of B- cells produces memory cells […]
Phagocytosis, an example of endocytosis
The ingestion and digestion of exogenous antigens, such as whole microorganisms and insoluble particles and endogenous matter, such as injured or dead host cells, cellular […]