Answer :
Final answer:
The pathway of the complement that is activated by antibodies is the Classical pathway. It is initiated by the activation of C1, which interacts with the Fc portion of IgG or IgM antibodies after they bind to antigens.
Explanation:
The pathway of the complement that is activated by antibodies is the Classical pathway. This pathway is initiated by the activation of C1, which primarily interacts with the Fc portion of the antibody molecules IgG or IgM after they have bound to their specific antigen.
C1 can also directly bind to the surfaces of some pathogens. The other pathways of complement activation are the Lectin pathway and the Alternative pathway.
