Cells infected with intracellular pathogens display antigens on what cell-surfac

Question

Cells infected with intracellular pathogens display antigens on what cell-surface molecule of infected cells? A) Major Histocompatability Complex Class I B) Major Histocompatability Complex Class II C) Major Histocompatability Complex Class III D) None of the above Can macrophages phagocytize intracellular pathogens? A) Yes and they become APCs B) No C) Yes and they become plasma cells D) None of the above Helper T cells that secrete interleukin 2 to activate cell-mediated immunity are called: A) T_H 1 B) T_H 2 A) MHC I D) CD95 Which type of lymphocyte are the active killer cells in cell-mediated immunity? A. suppressor T cell B. helper T cell C. cytotoxic T cell D. memory T cell Cell-mediated immunity involves which of the following pathways to destroy altered host cells? A. CD95 pathway B. Perforin-granzyme pathway C. Complement cascade D. More than 1 of the above Cytotoxic T cells can release what substance that signals altered host cells to undergo

Explanation / Answer

65) Major histocompatibility complexes (MHC) are the structures necessary for antigen presentation to cytotoxic T cells. They are of two types: MHC class I and MHC class II. MHC class I molecules present the non-self proteins present in the cytosol to cytotoxic T cells which will trigger an immune response. Therefore, the answer for this question is option A.

The peptides generated by the endocystic vesicles after internalisation binds with MHC class II molecules.

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