CHAPTER 6 PRACTICE QUESTIONS AND ANSWERS #17
What complement activation pathways depends on the antibody-antigen interaction?
A. Lectin Pathway
B. Classical Pathway
C. Alternative Pathway
D. Mannose-binding Lectin Pathway
E. All of the above - correct answer b. Classical Pathway
Where do all three complement activation pathways converge at?
A. C3
B. C8
C. C5
D. Both A and B
E. None of the above - correct answer c. C5
The following are complement activities EXCEPT:
Lysis of target cells
Binding receptors and inducing inflammation
Immune clearance
Opsonization
Activation of cells in the bone marrow - correct answer Activation of cells in the bone
marrow
Which of the following facilitates dissociation of both the C4b2a and c3bbb C3
convertases?
MCP (CD46)
Factor H
DAF (CD55)
Factor I
Properdin - correct answer DAF (CD55)
Which of the following BEST explains the timing of the classical pathway of complement
fixation, relative to the other pathways of complement fixation, against a pathogen in an
individual who has never been exposed to said pathogen?
What complement activation pathways depends on the antibody-antigen interaction?
A. Lectin Pathway
B. Classical Pathway
C. Alternative Pathway
D. Mannose-binding Lectin Pathway
E. All of the above - correct answer b. Classical Pathway
Where do all three complement activation pathways converge at?
A. C3
B. C8
C. C5
D. Both A and B
E. None of the above - correct answer c. C5
The following are complement activities EXCEPT:
Lysis of target cells
Binding receptors and inducing inflammation
Immune clearance
Opsonization
Activation of cells in the bone marrow - correct answer Activation of cells in the bone
marrow
Which of the following facilitates dissociation of both the C4b2a and c3bbb C3
convertases?
MCP (CD46)
Factor H
DAF (CD55)
Factor I
Properdin - correct answer DAF (CD55)
Which of the following BEST explains the timing of the classical pathway of complement
fixation, relative to the other pathways of complement fixation, against a pathogen in an
individual who has never been exposed to said pathogen?
