The classic pathway of complement activation begins when the protein C1 binds to
A)the cell wall of bacteria.
B)the plasma membrane of bacteria.
C)an antibody attached to an antigen.
D)a cell surface antigen.
E)a plasma protein.

Question

Quizplus · Accepted Answer

The classic pathway of complement activation involves the binding of the protein C1 to an antibody attached to an antigen, leading to a cascade of reactions that result in the formation of the membrane attack complex and lysis of the target cell.

The Classic Pathway of Complement Activation Begins When the Protein