Campbell Biology: Concepts & Connections, Books a la Carte Plus Mastering Biology with eText -- Access Card Package (8th Edition)
8th Edition
ISBN: 9780133909029
Author: Jane B. Reece, Martha R. Taylor, Eric J. Simon, Jean L. Dickey, Kelly A. Hogan
Publisher: PEARSON
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Textbook Question
Chapter 24, Problem 2TYK
Foreign molecules that elicit an immune response are called
a. major histocompatibility complex (MHC) molecules.
b. antibodies.
c. histamines.
d. antigens.
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Which of the following are TRUE of class I major histocompatibility complex (MHC) molecules? a. Class I MHC molecules present endogenous antigens. b. Class I MHC molecules are only present on erythrocyte surfaces. c. Class I MHC molecules bind complement. d. Class I MHC molecules present exogenous antigens.
Upon further testing, it is found that Matthew in question 4 does have normal cellular immunity. However, without antibodies Matthew will be less able to a. destroy cancer cells. b. destroy virus-infected cells. c. bind viral particles. d. destroy intracellular pathogens.
Which of the following statements best characterizes interferons? A. Interferons are a nonspecific defense used to respond to viruses. B. Interferons are part of the humoral immune response against viruses. C. Interferons are part of the humoral immune response against bacteria. D. Interferons are a nonspecific defense used to respond to bacteria.
Chapter 24 Solutions
Campbell Biology: Concepts & Connections, Books a la Carte Plus Mastering Biology with eText -- Access Card Package (8th Edition)
Ch. 24 - Complete this concept map to summarize the key...Ch. 24 - Foreign molecules that elicit an immune response...Ch. 24 - Which of the following is not part of the...Ch. 24 - Which of the following best describes the...Ch. 24 - Prob. 5TYKCh. 24 - Prob. 6TYKCh. 24 - Prob. 7TYKCh. 24 - Prob. 8TYKCh. 24 - Prob. 9TYKCh. 24 - Prob. 10TYK
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- which two of following statements are true for an antigen prsent cell such as dendritic cell? a. Phagocytes are extra cellular pathogens b. Display processed pathoic peptide on the surface of the cell c. Produce antibodies specific for a pathogen d. Activate naive erythrocytesarrow_forwardWhich of the following is part of the second line of defense against pathogens?a. skin b. mucus membranesc. lysozyme in tears d. phagocytes Which of the following does NOT have MHC class II molecules on the surface of their cell membranes? a. Macrophages.b. Dendritic cells.c. B cells.d. Helper T cells.arrow_forwardWhich of the following is both a phagocyte and an antigen-presenting cell? a. NK cell b. eosinophil c. neutrophil d. macrophagearrow_forward
- Which of the following is NOT true of B ceIls?a. Has membrane-bound antibodies.b. Produces antibodies when activated into plasma cells.c. Has MHC class II molecules.d. Kills infected body cells.arrow_forwardAll of the following are phagocytic cells except a. neutrophils. b. T-lymphocytes. c. macrophages. d. dendritic cells.arrow_forwardB cells that produce and release large amounts of antibody are called: a. Memory cells b. Basophils c. Plasma cells d. Killer cells e. Neutrophilsarrow_forward
- All of the following are functions of antibodies except a. neutralization of pathogen. b. destruction of antigen. c. agglutination of antigen. d. opsonization.arrow_forwardWhich of the following statements are true for antigen presentation. a. Antigen presentation means that other cells attach the pathogen first and present it to T cells. b. Antigen-presenting cells display protein fragments, resulting from the digestion of the pathogen, in complex with MHC receptor to B cells c. Antigen presenting cells display protein fragments, resulting from the digestion of the pathogen, in complex with MHC receptor on their surface. d. Antigen-presenting cells are phagocytic cells e. Antigen presentation is required for T cell activation f. Cytokines released by macrophages are required for T cell activation g. T cell receptors recognize the MHC receptors in complex with antigen fragments displayed by antigen-presenting cells. h. Phagocytic cells are involved in innate immunity. Therefore they have no role in T-cell activationarrow_forwardIn regard to antigen presentation, MHC class I molecules usually present peptides derived from _____, whereas MHC class II molecules usually present peptides derived from _____. a. intracellular cytosolic sources; vesicular system b. phagolysosome; proteasomes c. MIIC; self proteins d. CLIP; HLA-DM e. endocytic vesicles; endoplasmic reticulum.arrow_forward
- An MHC class II/antigen complex on the surface of an antigen-presenting cell (APC) binds to a T-cell receptor. What results from this interaction? Select one: a. Other immune cells are stimulated to respond to the antigen. b. Other immune cells are inhibited. c. The T cell responds by directly destroying the APC. d. The antigen is phagocytized by the T cell.arrow_forwardStructures on invading cells recognized by the adaptive immune system are known as a. antigens. b. interleukins. c. antibodies. d. lymphocytes.arrow_forwardWhich of the following can serve as antigen-presenting cells (APCs)?a. T cells b. B cells c. macrophages d. dendritic cells e. b, c, and darrow_forward
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