Campbell Biology
12th Edition
ISBN: 9780135188743
Author: Urry
Publisher: PEARSON
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Chapter 43, Problem 6TYU
Summary Introduction
Introduction: Vaccination is a method of injecting an inactivated bacterial toxin, killed or weakened pathogen. This induces a primary immune response and immunological memory. This method increases the “number of lymphocytes with receptors that can bind to the pathogen”. Hence, the defense mechanism reacts strongly and rapidly during the subsequent invasion of the “pathogen”.
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Human immune system
a) Pathogen-associated molecular patterns are conserved molecular structures produced by microorganisms, but not by host cells.
b) A virus-infected host cell that displays a viral antigen via MHC class I molecules may become a target of cytotoxic T cells.
c) Secreted MHC Class I proteins present in blood plasma can function as opsonins.
d) Both (a) and (b) are correct and (c) is incorrect
e) Statements (a), (b) and (c) are all correct
Which of the following statements is not true?(A) An antibody has more than one antigen-binding site.(B) A lymphocyte has receptors for multiple differentantigens.(C) An antigen can have different epitopes.(D) A liver or muscle cell makes one class of MHC molecule.
Plasma cells
(A) tag pathogens with antibodies
(B) are a fragment of a megakaryocyte
(C) attack tagged pathogens directly
(D) are a part of the innmate immune system
Chapter 43 Solutions
Campbell Biology
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 - Prob. 2CCCh. 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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- 1. Compared to innate immunity, adaptive immunity (A) has a response time of minutes to hours. (B) is only specific to a few types of antigens. (C) becomes more rapid and efficient with each subsequent exposure. (D) All of these are correct. 2. The white pulp of the ____ forms the periarteriolar lymphoid sheath (PALS) around arterioles. Closely associated with the PALS are lymphoid follicles, primarily composed of ____ in their germinal centers. (A) spleen; B cells (B) thymus; T cells (C) spleen; macrophages (D) thymus; neutrophilsarrow_forwardAPC cells with antigen presented on MHC I can trigger which naïve cell type to activate, thus forming memory and effector cells? O 1) macrophages O 2) CD4 cells O 3) CD8 cells O 4) B cellsarrow_forwardImmunosuppression is a lowering of the responsiveness ofthe immune system to materials it recognizes as foreign and isproduced by _________and_________ .(a) antibodies and foreign antigens(b) NK cells and allergen desensitizers(c) radiation and cytotoxic drugs(d) hypersensitivity and transplant rejection(e) a and darrow_forward
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