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.

Question

Quizplus · Accepted Answer

Complement is activated by antibodies, which can cause the complement proteins to drill a hole into foreign cells, leading to cytolysis.

Which Is the Best Explanation of How Complement-A Group of About