1) Chlamydia can prevent the formation of phagolysosomes, and therefore Chlamydia can
A) avoid being phagocytized
B) avoid destruction by complement
C) avoid being digested
D) prevent antibody recognition
E) none of the above
2) If the following are placed in the order of occurrence, which would be the third step?
A) Emigration
B) Formation of a phagocytosis
C) Digestion
D) Formation of a phagolysosome
E) Margination
3) If the following are placed in the order of occurrence, which would be the third step?
A) Activation of C5 through C9
B) Cell lysis
C) Antigen-antibody reaction
D) Activation of C3
E) Activation of C1, C2 and C4
4) A human host can prevent a pathogen from getting enough iron by
A) reducing dietary intake of iron
B) binding iron with transferrin
C) binding iron with hemoglobin
D) excreting excess iron
E) binding iron with siderophores
Answer (2)
Chlamydia avoids being phagocytized by preventing phagolysosome formation. The third step in phagocytosis is the formation of phagocytosis, while the third step in complement activation is the activation of C3. A human host can effectively deny pathogens iron by binding it with transferrin. ;
Chlamydia can avoid being phagocytized by preventing the formation of phagolysosomes. The third step in phagocytosis is the formation of phagocytosis, while in complement activation, the third step is the activation of C3. Additionally, a human host can effectively limit a pathogen's access to iron by binding it with transferrin.
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