All of the following are true about the classical pathway except
A)Begins with formation of C1 from C1q,C1r,and C1s molecules
B)Consists of C5b and C6-C9
C)Is regulated by two mechanisms in the fluid phase
D)Is regulated on cell surfaces with complement control proteins

Question

Quizplus · Accepted Answer

The classical pathway consists of C1-C4, C2a, and C3b, which then lead to the formation of the C5b-9 membrane attack complex. C5b is not part of the classical pathway, but it is common to all three complement activation pathways.

All of the Following Are True About the Classical Pathway