The complement pathway that requires antibodies to be activated is the
A) alternate pathway.
B) classical pathway.
C) properdin pathway.
D) inflammatory pathway.
E) lectin pathway.

Question

Quizplus · Accepted Answer

The classical pathway of the complement system is activated by the binding of antibodies (IgG or IgM) to foreign substances. This binding triggers a cascade of reactions that ultimately leads to the lysis of the foreign cell or microbe. The other pathways (alternate, properdin, inflammatory, and lectin) can be activated independently of antibodies.

The Complement Pathway That Requires Antibodies to Be Activated Is