Microbiology with Diseases by Taxonomy, Books a la Carte Plus Mastering Microbiology with Pearson eText -- Access Card Package (5th Edition)
5th Edition
ISBN: 9780134402789
Author: Robert W. Bauman Ph.D.
Publisher: PEARSON
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Textbook Question
Chapter 16, Problem 8MC
Which cells express MHC class I molecules in a patient?
- a. red blood cells
- b. antigen-presenting cells only
- c. neutrophils only
- d. all nucleated cells
- e. dendritic cells only
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What is the appropriate response when antigen is presented on MHC class II molecules?a) An effector CD8 cell should kill the presenting cell.b) An effector CD4 cell should kill the presenting cell.c) An effector CD8 cell should activate the presenting cell.d) An effector CD4 cell should activate the presenting cell.
About Antigen presenting cells, it is CORRECT to affirm that:
a). Macrophages, B lymphocytes and dendritic cells are APCs. meaning they express MHC-ll. b). Only APCs present MHC-11. c). Macrophages,B lymphocytes and dendritic cells are phagocytes, but not APCs.d). All the non-APC cells of our body present MHC-1.
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.
Chapter 16 Solutions
Microbiology with Diseases by Taxonomy, Books a la Carte Plus Mastering Microbiology with Pearson eText -- Access Card Package (5th Edition)
Ch. 16 - Prob. 1MCCh. 16 - Prob. 2MCCh. 16 - Prob. 3MCCh. 16 - Prob. 4MCCh. 16 - Prob. 5MCCh. 16 - Prob. 6MCCh. 16 - Prob. 7MCCh. 16 - Which cells express MHC class I molecules in a...Ch. 16 - Prob. 9MCCh. 16 - Prob. 10MC
Ch. 16 - Prob. 1TFCh. 16 - Prob. 2TFCh. 16 - Prob. 3TFCh. 16 - Prob. 4TFCh. 16 - Prob. 5TFCh. 16 - Prob. 1MCh. 16 - Prob. 2MCh. 16 - Prob. 1VICh. 16 - The nearby image is a transmission electron...Ch. 16 - Prob. 1SACh. 16 - Prob. 2SACh. 16 - Prob. 1CTCh. 16 - Contrast innate defenses with adaptive immunity.Ch. 16 - Prob. 3CTCh. 16 - Prob. 4CTCh. 16 - Prob. 5CTCh. 16 - Prob. 6CTCh. 16 - Prob. 7CTCh. 16 - Some materials, such as metal bone pins and...Ch. 16 - Prob. 9CTCh. 16 - Prob. 10CTCh. 16 - Prob. 11CTCh. 16 - Prob. 12CTCh. 16 - Prob. 13CTCh. 16 - Prob. 14CTCh. 16 - Prob. 1CMCh. 16 - Prob. 1TMWCh. 16 - Prob. 2TMWCh. 16 - Prob. 3TMWCh. 16 - Prob. 4TMWCh. 16 - Prob. 5TMWCh. 16 - Prob. 1EDCS
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- Which innate immune system component uses MHC class I molecules directly in its defense Strategy? a. macrophages b. neutrophils c. NK cells d. interferonarrow_forwardAntibodies are ________. a. antigen receptors c. proteins b. made only by B cells d. all of the abovearrow_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_forward
- Which of the following is a characteristic of a cytotoxic T cell? Question 7 options: A) They originate in bone marrow. B) They have antibodies on their surfaces. C) They are responsible for the memory response. D) They recognize antigens associated with MHC I.arrow_forwardA second exposure to a given foreign antigen elicits a rapid and pronounced immune response becausea. passive immunity occurs after the first exposure.b. some B cells differentiate into memory B cells after the first exposure.c. a greater number of antigen-presenting cells are available due to the earlier exposure.d. the array of class II MHC proteins expressed by antigen-presenting cells is permanently altered by the first exposure.e. Both a and b are correct.arrow_forwardNatural killer cellsa. are known for attacking large parasites, such as tapeworms.b. engulf pathogens and present antigens to T cells.c. recognize the absence of MHC-I molecules on a cell surface.d. produce antibodies.arrow_forward
- MHC class II proteins: A. present exogenous antigen to the immune system B. both are found on antigen presenting cells and present exogenous C. antigen to the immune system are found on antigen presenting cellsarrow_forwardWhich 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_forwardOne of the common characteristics of lymphocytes (1), neutrophils, and macrophages) the resulting immunity is not specialized b) they are the second line of defense c) they are all white cells d) they produce a cellular responsearrow_forward
- 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.arrow_forwardA number of minor cancerous cells and infected viruses, such as Epstein Barr (EBV), are able to go undetected by cytotoxic T cell degradation by what possible mechanism? a. the production of normal class I MHC molecule b. helper T cell activation c. the deactivation of the complement system d. tumor antigen expression e. the production of the class II major histocompatability (MHC) moledulearrow_forwardin antibody-mediated immunity, what happens immediately after B cells are activated? a. the foreign antigen-MHC complex is displayed on the cell surfaces. b. activated T helper cells interact with the B cells. c. the B cells are cloned. D. antibodies combine with antigens on the pathogen surface.arrow_forward
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