Actions of antibodies Flashcards
1
Q
Neutralization
A
Antibody covers biologically active portion of microbe or toxin
1
Q
Agglutination
A
Antibody cross links cells forming a clump
2
Q
Precipitation
A
Antibody crosslinks circulating particles forming an insoluble antigen-antibody complex
3
Q
Complement fixation
A
FC region (stem) of antibody binds complement proteins; complement is activated
4
Q
Opsonization
A
Fc region binds to receptors of phagocytic cells, triggering phagocytosis
5
Q
Activation of NK cells
A
Fc region binds to NK cell, triggering release of cytotoxic chems
