ch11.docx - Chapter 11 T-Cell Activation Differentiation and Memory 1 What event initiates an adaptive immune response A B C D E The interaction of a B

ch11.docx - Chapter 11 T-Cell Activation Differentiation...

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Chapter 11 T-Cell Activation, Differentiation, and Memory 1.What event initiates an adaptive immune response? A.The interaction of a B cell with a THcellB.The expression of cytokines CD4 or CD8C.The production of MHC class I or II moleculesD.The interaction of a naïve T cell with an antigen-presenting cellE.The phagocytosis of a pathogen by a macrophageAnswer: DSection: IntroductionDifficulty: 1Hint: T-cell activation 2.For pathogen peptides to be seen as foreign, they must be displayed on a T cell in the context of a/an: 3.CD4+T cells recognize: 4.CD8+T cells exposed to MHC class I peptides are: [1]
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Chapter 11 T-Cell Activation, Differentiation, and Memory 5.CD4+T cells become helper T cells in response to: A.exposure to antigen.B.exposure to MHC class II peptide.C.exposure to any MHC peptide.D.exposure to MZ B cells.E.exposure to TNF-.αAnswer: BSection: IntroductionDifficulty: 1Hint: TH cell activation 6.Naïve CD4+and CD8+T cells leave the ______ and enter circulation. 7.A naïve T cell refers to a T cell that: 8. Bonds formed between the T cell and a dendritic cell are relatively weak. Which of the following help to strengthen this association so that a T cell can see which antigen is being presented by a dendritic cell? [2]
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Chapter 11 T-Cell Activation, Differentiation, and Memory A. CD28/LFA-5 B. CD 28 C. ICAM-1/LFA-1 D. IL-2R E. Pattern-recognition molecules Answer: C Section: T-Cell Activation and the Two-Signal Hypothesis Difficulty: 2 Hint: T-cell co-receptors
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