Question 9 of 14Which of the following acts as a signal for the dendritic cell to begin cross-presentation?Presence of self-reactive CD4 T cellsO Expression of endoplasmic reticulum (ER) chaperones calnexin and calreticulinO Phagocytosis and processing of extracellular antigensO Cytokine release following the activation of engaged CD4 T cellsQuestion 10 of 14Which of the following are true about MHC class I and MHC class II peptide loading?Select all that apply.MHC class I peptide loading occurs in four steps.Peptide loading of class I molecules generated from intracellular proteins occurs in the endoplasmic reticulum.MHC class Il molecules are loaded before they are part of a vesicle capable of fusing with a phagolysosome.Peptide loading of class Il molecules occurs later in the secretory pathway than that of MHC class I molecules.

Cross-presentation is the process by which specific MHC class I-expressing professional…

Question 9 of 14 Which of the following acts as a signal for the dendritic cell to begin cross-presentation? O Presence of self-reactive CD4 T cells O Expression of endoplasmic reticulum (ER) chaperones calnexin and calreticulin O Phagocytosis and processing of extracellular antigens O Cytokine release following the activation of engaged CD4 T cells

Question 9 of 14 Which of the following acts as a signal for the dendritic cell to begin cross-presentation? O Presence of self-reactive CD4 T cells O Expression of endoplasmic reticulum (ER) chaperones calnexin and calreticulin O Phagocytosis and processing of extracellular antigens O Cytokine release following the activation of engaged CD4 T cells

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter42: The Immune System

Section: Chapter Questions

Problem 1VCQ: Figure 42.11 Which of the following statements about T cells is false? Helper T cells release...

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Question 10 of 14 Which of the following are true about MHC class I and MHC class II peptide loading? Select all that apply. MHC class I peptide loading occurs in four steps. Peptide loading of class I molecules generated from intracellular proteins occurs in the endoplasmic reticulum. ⒸMHC class II molecules are loaded before they are part of a vesicle capable of fusing with a phagolysosome. Peptide loading of class II molecules occurs later in the secretory pathway than that of MHC class I molecules.
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Figure 42.11 Which of the following statements about T cells is false? Helper T cells release cytokines while cytotoxic T cells kill the infected cell. Helper T cells are CD4+, while cytotoxic T cells are CD8+. MHC II is a receptor found on most body cells, while MHC I is a receptor found on immune cells only. The T cell receptor is found on both CD4+ and CD8+ T cells.