Multiple Choice
Which is the best explanation of how complement-a group of about 20 inactive enzymes in the plasma and on cell surfaces-is activated and produces cytolysis?
A) Complement is "turned on" by the presence of bacteria.
B) Complement is activated by antibodies to "drill a hole" into foreign cells, thus causing cytolysis.
C) Complement causes vasoconstriction and inhibits phagocytosis.
D) Both A and B are correct.
Correct Answer:

Verified
Correct Answer:
Verified
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