Blymphocytes Present extracellular antigen to helper T cells Are activated with permission from CD4+ cells Display foreign molecules using MHC-2 Secrete immune proteins that neutralize invaders and/or target them for destruction All of the above.

Blymphocytes Present extracellular antigen to helper T cells Are activated with permission from CD4+ cells Display foreign molecules using MHC-2 Secrete immune proteins that neutralize invaders and/or target them for destruction All of the above.

Name: 7 BlymphocytesPresent extracellular antigen to helper T cellsAre activ
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Description: 7 BlymphocytesPresent extracellular antigen to helper T cellsAre activated with permission from CD4+ cellsDisplay foreign molecules using MHC-2Secrete immune proteins that neutralize invaders and/or target them for destructionAll of the above.

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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Match the immune cell with its main function. ___dendritic cell a. professional phagocyte ___B cell b. antigen-presenter ___helper T cell c. activates other lymphocytes ___NK cell d. makes antibodies ___macrophage e. kills ailing body cells that lack MHC markers
Match the immunity concept with the best description. _____ anaphylactic shock a. recognizes antigen _____ immune memory b. insufficient immune response _____ immune deficiency c. general defense mechanism _____ autoimmunity d. immune response against ones own body _____ antigen receptor e. secondary response _____ inflammation f. acute allergic reaction
Match the immunity concept with the best description. ___anaphylactic shock a. recognizes antigen ___immune memory b. inadequate immune response ___autoimmunity c general defense mechanism ___inflammation d. immune response against ones own body ___immune deficiency e. secondary response ___antigen receptor f. acute allergic reaction ___antigen processing g. presenting antigen together with MHC markers
Match the immunity concepts: __________ inflammation __________ antibody secretion __________ phagocyte __________ immunological memory __________ vaccination __________ allergy a. neutrophil b. plasma cell c. nonspecific response d. purposely causing memory cell production e. basis of secondary immune response f. nonprotective immune response
The ability to develop a secondary immune response is based on ______. a. memory cells b. circulating antibodies c. plasma cells d. effector cytotoxic T cells e. mast cells
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.
The humoral immune response depends on which cells? a. TC cells b. B cells c. B and TH cells d. TC and TH cells
A dendritic cell engulfs a bacterium, then presents bacterial bits on its surface along with an _______. a. MHC marker c. T cell receptor b. antibody d. antigen
Antibodies are ________. a. antigen receptors c. proteins b. made only by B cells d. all of the above
Which type of T cell is most effective against viruses? Th1 Th2 cytotoxic T cells regulatory T cells
Put the following steps in order for cell-mediated immunereactions:(a) Differentiated T cells include T helper, delayed hyper-sensitivity, cytotoxic, and memory T cells that all havedifferent immunological functions depending on the an-tigen presented.(b) Antigen-presenting cells (macrophages and dendriticcells) phagocytize pathogens, ingesting and degradingthem into pieces which are transported to the surface ofthe cell.(c) T cells bearing the corresponding receptor for the pre-sented antigen bind to it and become activated only ifthe appropriate MHC is also present.(d) Some pieces of the pathogen’s antigens are processedby inserting them into the antigen-presenting cell’smembrane and are held in place by class II majorhistocompatibility complex (MHCII) proteins.(e) Activated T cells are stimulated to divide and differen-tiate into different types of T cells, including memorycells
Type II hypersensitivities are due toa. IgE reacting with mast cellsb. activation of cytotoxic T cellsc. IgG-allergen complexes that clog epithelial tissuesd. complement-induced lysis of cells in the presence of antibodies