Antigens: foreign substances inducing immune responses; recognized via specific determinants.
1. What is the primary role of antigens in the immune response?
2. Which immunoglobulin class is mainly responsible for mucosal immunity and is found in secretions like saliva and breast milk?
3. In serological testing, what does the zone of equivalence signify in precipitation reactions?
Antigens — definition?
Foreign substances inducing immune response
IgE — role?
Mediates allergic reactions
Precipitation — mechanism?
Soluble antigens + antibodies form visible complexes
Antigen — definition?
Foreign molecule inducing immune response.
IgG — role?
Main serum antibody, crosses placenta, neutralizes toxins.
Agglutination — process?
Clumping of insoluble antigens with antibodies.
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