Amplification steps in the complement pathways occur
A) in the classical pathway with C1 cleaving multiple molecules of C4 and multiple C2 for every C1 and C4; in the alternative pathway with the C3b of other pathways becoming C3 convertase; and then the C3b becoming part of a C5 convertase
B) in all pathways with all the C3 convertases making multiple C3a +C3b
C) with C9 polymerization
D) all of the above
E) A and B only
Correct Answer:
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Q2: Susie has an acute infection-strep throat-and her
Q3: Complement has
A)about 9 different proteins that are
Q4: Sometimes a microorganism can directly activate complement
Q5: Complement proteins are synthesized by
A)the liver
B)monocytes
C)macrophages
D)epithelial cells
E)All
Q6: What molecule is needed for C1q,r and
Q7: Which of the following are anaphylatoxins?
A)C1q, C2a,
Q8: C1q can
A)bind free-floating IgM that is not
Q9: Properdin is a
A)complemencomponent of the classical pathway
B)complement
Q10: Anaphylatoxins include
A)C5a
B)C4a
C)C3a
D)C5a and C4a
E)all of the above
Q11: Inhibitors of complement include
A)factors I, H, and
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