chapt 6

Involves nine proteins that are triggered by antigen–antibody combination.

This plays a major role as a natural defense system.

The second pathway, the alternative pathway, was originally called the _.

it is known that major function is to stabilize a key enzyme complex formed along the pathway.

Another antibody-independent means of activating complement proteins.

Plays a major part in the inflammatory response directed against foreign antigens.

The main antibody directed mechanism for triggering complement activation.

What is the most efficient immunoglobulin, and it has multiple binding sites; thus, it takes only one molecule attached to two adjacent antigenic determinants to initiate the cascade.

What immunoglobulin must attach to antigen within 30 to 40 nm of each other before complement can bind

Within the IgG group, _ is the most effective, followed by _ and then _.