Campbell Biology: Australian And New Zealand Edition + Mastering Biology With Etext
11th Edition
ISBN: 9781488687075
Author: Lisa, A. Urry
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Question
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.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
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?
For question with blanks, choose the combination of answers that most accurately completes the statement.Helper T cells receive antigen from.......... , and cytotoxic T cells receive antigen from............. a. macrophages, B cells b. class II MHC, class I MHC c. viruses, bacteria d. class I MHC, class II MHC
Chapter 43 Solutions
Campbell Biology: Australian And New Zealand Edition + Mastering Biology With Etext
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...
Knowledge Booster
Similar questions
- 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.arrow_forwardB 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_forward
- Which 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_forwardWhich of the following immune cells/molecules are most ef-fective at destroying intracellular pathogens?(a) TH cells (d) B cells(b) Antibodies (e) Complement(c) TC cellsarrow_forwardTo become a fully activated, antibody-secreting cell, B cellsusually need:(a) To encounter an antigen or receive a signal delivered bya T helper cell(b) To ingest a foreign invader such as a microbe(c) Activation by a plasma cell(d) Contact with an antigen and T helper cell cytokinesarrow_forward
- Perforins are destructive proteins associated with the activity of, (a) T cells. (b) B cells. (c) macrophages. (d) plasma cells.arrow_forward1. How does the thymus help the body avoid autoimmune responses? (A) By negatively selecting T cells with receptors that bind to peptide-MHC complexes with high affinity. (B) By positively selecting T cells with receptors that only recognize self peptides. (C) By facilitating cell signaling between T cell surface receptors and antigens in the thymic capsule. (D) By using clonal deletion to eliminate antigen-presenting cells that have low affinity for T cells receptors. 2. Functions of the innate immune system include all of these EXCEPT: (A) to eliminate pathogens directly. (B) to mediate the inflammatory response. (C) to activate the adaptive immune system. (D) All of these are functions of the innate immune system.arrow_forwardBoth NK cells and cytotoxic T cells "kill" via the same mechanisms - what are they? Are these cells part of the innate or the adaptive immune system....or both - explain.arrow_forward
- A person with AIDS will probably:(a) Not make antibody(b) Make a response to T-dependent antigens(c) Make antibody to T-independent antigens(d) Have large numbers of T-helper cells(e) None of the abovearrow_forwardCD4 markers are associated with, (a) cytotoxic cells. (b) regulatory cells. (c) helper T cells. (d) a, b, and c.arrow_forwardA man gets bitten by a rattle snake. The man is rushed to the hospital and they administer to him anti-rattle snake venom. The anti-rattle snake venom is horse antibodies that were raised against rattle snake venom, and it provides immunity against rattle snake venom. Based on what you studied in the lecture: A) what is the type of immunity that antivenom provides? B) Are the antibodies part of the innate or the adaptive immune responses? C) From what you have learned about the properties of antibodies, can this horse anti-rattle snake venom be used as anti-venom to Cobra snake venom? Explain briefly. D) Six months after this incident, the same person got bitten again by a rattle snake. However, at the hospital the doctors were informed that he was previously given horse anti-venom and so they decided that this person cannot be injected again with horse anti-venom, and they had to find an anti-venom not prepared in horse. Explain briefly why he cannot get any horse anti-venom again,…arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Human Heredity: Principles and Issues (MindTap Co...BiologyISBN:9781305251052Author:Michael CummingsPublisher:Cengage Learning
Human Heredity: Principles and Issues (MindTap Co...
Biology
ISBN:9781305251052
Author:Michael Cummings
Publisher:Cengage Learning