Campbell Biology, Books a la Carte Plus Mastering Biology with eText -- Access Card Package (10th Edition)
10th Edition
ISBN: 9780133922851
Author: Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson
Publisher: PEARSON
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Chapter 43, Problem 3TYU
Summary Introduction
Introduction: B cells are triggered when an “antigen” binds to the “antigen receptor”. This leads to synthesis of Ig proteins and are also called as antibody. In “cell-mediated immune response,” the “cytotoxic T cells” kills the “infected cells” by secreting toxic proteins before the full maturation of pathogens.
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Which statement best describes the difference between responses of effector B cells (plasma cells) and those of cytotoxic T cells? (A) B cells confer active immunity;cytotoxic T cells confer passive immunity. (B) B cells respond the first time a pathogen is present; cytotoxic T cells respond subsequent times. (C) B cells secrete antibodies against a pathogen; cytotoxic T cells kill pathogen-infected host cells. (D) B cells carry out the cell-mediated response; cytotoxic T cells carry out the humoral response.
Explain the mechanism by which (A) macrophages and NK cells, and (B) macrophages and effector T cells become mutually activated in the course of an innate and adaptive immune response, respectively. (C) Which gene defects would impair these mutual activation processes?
Which of the following T cells would survive education in the thymus? (a) one that recognizes neither MHC nor self-antigen, (b) one that recognizes both MHC and self-antigen, (c) one that recognizes MHC but not self-antigen, (d) one that recognizes self-antigen but not MHC.
Chapter 43 Solutions
Campbell Biology, Books a la Carte Plus Mastering Biology with eText -- Access Card Package (10th Edition)
Ch. 43.1 - Pus is both a sign of infection and an indicator...Ch. 43.1 - MAKE CONNECTIONS How do the molecules that...Ch. 43.1 - Prob. 3CCCh. 43.2 - Prob. 1CCCh. 43.2 - Prob. 2CCCh. 43.2 - WHAT IF? If both copies of a light-chain gene and...Ch. 43.3 - Prob. 1CCCh. 43.3 - Treatment of antibodies with a particular protease...Ch. 43.3 - Prob. 3CCCh. 43.4 - Prob. 1CC
Ch. 43.4 - Prob. 2CCCh. 43.4 - WHAT IF? How would a macrophage deficiency likely...Ch. 43 - In what ways does innate immunity protect the...Ch. 43 - Why is the adaptive immune response to an initial...Ch. 43 - Is immunological memory after a natural infection...Ch. 43 - Prob. 43.4CRCh. 43 - Prob. 1TYUCh. 43 - An epitope associates with which part of an...Ch. 43 - Prob. 3TYUCh. 43 - Level 2: Application/Analysis 4. Which of the...Ch. 43 - Prob. 5TYUCh. 43 - Prob. 6TYUCh. 43 - Prob. 7TYUCh. 43 - Prob. 8TYUCh. 43 - MAKE CONNECTIONS Contrast clonal selection with...Ch. 43 - EVOLUTION CONNECTION Describe one invertebrate...Ch. 43 - Prob. 11TYUCh. 43 - Prob. 12TYUCh. 43 - SYNTHESIZE YOUR KNOWLEDGE This photo shows a child...
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- B lymphocytes, the precursors of plasma cells, are triggered to proliferate by the binding of multivalent antigens to receptors on their surfaces. The cell-surface receptors are transmembrane immunoglobulins. Univalent antigens, in contrast, do not activate B cells. (a) What do these findings reveal about the mechanism of B-cell activation? (b) How might antibodies be used to activate B cells?arrow_forwardPut 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 memorycellsarrow_forwardWhich of the following lists contains cells that are typically considered to be associated with the innate immune response? Question 14 options: A) neutrophils, macrophages, T cells B) neutrophils, macrophages, NK cells C) B cells, T cells, and NK cells D) basophils, T cells, mast cellsarrow_forward
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- CD4 markers are associated with, (a) cytotoxic cells. (b) regulatory cells. (c) helper T cells. (d) a, b, and c.arrow_forwardAll of the following cells directly incorporate antigens into their structures, EXCEPT: A). Antigen presenting cells. B). Helper T cells C). B cells D). Killer T cellsarrow_forwardInjections into the heel of a girl (whose blisters were licked by a rabies-infected kitten) to agglutinate rabies’ toxins are an example of: Choose one from the following: (A) natural active immunity (B) acquired active immunity (C) natural passive immunity (D) acquired passive immunityarrow_forward
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