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

Verified
Correct Answer:
Verified
Q130: The binding of an antigen to an
Q131: Which of the following interleukins stimulates T
Q132: The effects of activating the complement system
Q133: The cells responsible for humoral immunity are
Q135: Nonspecific defenses include<br>A) phagocytic cells.<br>B) inflammation.<br>C) physical
Q136: The only antibodies that normally cross the
Q137: The cell that dominates the deep cortical
Q138: Immunoglobulins that are primarily found in glandular
Q139: The phagocytic antigen-presenting cells belong to the
Q139: Which class of leukocytes is particularly abundant