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The Mechanisms by Which Ts1u1b1hs1u1b01 Cells Protect Against Microbes Include

Question 5
Multiple Choice

The mechanisms by which TH1 cells protect against microbes include all of the following EXCEPT: A)Secretion of interferon (IFN)-which activates microbicidal functions of macrophages B)Expression of CD40 ligand,which binds to CD40 on macrophages and activates them C)Secretion of IFN-,which promotes B cell production of opsonizing antibodies D)Secretion of lymphotoxin and tumor necrosis factor,which enhance neutrophil killing of ingested microbes E)Release of granzyme B,which stimulates apoptosis of bacteria

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Q 6
Activated macrophages perform all of the following functions EXCEPT: A)Inhibition of fibroblast proliferation and angiogenesis within damaged tissues B)Production of lysosomal enzymes and reactive oxygen species that kill phagocytosed microbes C)Presentation of antigen to helper T cells D)Secretion of inflammatory cytokines such as tumor necrosis factor and interleukin-1 E)Production of nitric oxide,which helps kill microorganisms
Q 7
Which of the following molecules is NOT important in the interaction between a cytolytic T lymphocyte and a target cell? A)B7-1 B)ICAM-1 C)LFA-1 D)T cell receptor E)Class I MHC
Q 8
Which pair of molecules is a component of cytolytic T lymphocyte (CTL)granules and is important in the mechanism of CTL killing of target cells? A)Perforin and Fas ligand B)P-selectin and tumor necrosis factor C)Major basic protein and granzyme B D)C9 and interferon- E)Perforin and granzyme B
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