醫(yī)學免疫學英語試題-文庫吧
2025-07-21 03:44 本頁面
【正文】 A. enzymatic digestion of the cell membrane B. activation of adenylate cyclase C. insertion of plement proteins into the cell membraneD. inhibition of elongation factor 2 12. CD8 is a marker of ( C)A. B cells B. Helper T cells C. cytotoxic T cell D. Mφ13. MHC class Ⅱ molecules are found on (B ) A. Virtually all cells in the body B. B cells, DC and Mφ C. Virtually all nucleated cells in the body D. Only on virallyinfected cells.14. All of following cytokines are secreted by Th2 cells except (B )A. IL4 B. IFNγ C. IL5 D. IL615. Which of the following is NOT true of CD4+ and CD8+ cell markers? ( D ) A. These are both surface glycoproteins expressed on Tcells. B. These serve to distinguish different types of Tcells, ., helper, suppressor and cytotoxic, from each other. C. These are not found associated with immunoglobulins. D. Both of the markers are present on ALL Tcells. 16.Cells bearing MHC class I plus peptide are targets for specific: ( B )ABcells. BCytotoxic Tcells. CTh1 cells. DTh2 cells. 17. Dendritic cells are characterized by: ( D )Athe presence of major basic protein Bexpression of CD3 Cexpression of IgM molecules Dtheir interface between the innate and adaptive immune system18. Which of the following uniquely distinguishes the Tcell receptor (TCR) from an antibody? ( A )A. The TCR can bind an antigen fragment only in a trimolecular plex with either the class I or class II surface proteins of the major histopatibility plex B. The TCR can function as a cell surface antigen receptor C. The TCR is posed of two different types of polypeptide chains D. The TCR is capable of participating in a cytotoxic reaction.19. A critical property of an antigen is ( A )A. Its ability to stimulate an immune response B. a unique
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