Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Which of the following plays a role in the Arthus reaction?
a. IgE antibodies. b. complement c. cell-associated antigen d. cytotoxic T cells
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- 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_forward22. Which of the following is NOT a characteristic of cell- mediated immunity? a. The cells originate in bone marrow b. Cells are processed in the thymus gland c. The activation of cell-mediated immunity can be suppressed d. They are antigen presenting cells e. All of the above are characteristics of cell-mediated immunity 23. All of the following could be possibly target sites for antimicrobials to limit the possibility of side effects except a. peptidoglycan b. parasitic glycolytic enzymes c. ergosterol C. d. RNA polymerase DNA gyrase e. 24. Lysogeny can result in all of the following EXCEPT a. persistent infections b. a bacteria expressing new genes c. transduction of genes C. d. the turning off of the host cell's transcriptional and translational machinery e. the definite destruction of an infected cell 25. Due to your patient's opsonization of a bacterial cell with C₂B, which of following did NOT occur a. interference of the patient's secondary viral infection b. bacterial cell…arrow_forwardWhich of the following is not used as a treatment for autoimmune diseases? Select one: A. Anti-IL2 receptor B. Anti-CD4 C. Anti-MHC D. Anti-CCR5 E. Anti-T cell receptorarrow_forward
- Which event happens first during cytotoxic T-cell activation? a. Cytotoxic T cells secrete perforin and granzyme. b. Cytotoxic T cells recognize foreign antigen presented on the surface of a MHC I molecule. c. Cytotoxic T cells proliferate to form many new cells specific for the same antigen d. Cytotoxic T cells recognize foreign antigen presented on the surface of a TCR.arrow_forward45. Which of the following would be involved in reacting to a first-time exposure to Mycobacterium tuberculosis? a. a pre-7-10-day production of IgM b. activation of only T cells by T cells с c. memory B cells d. MHC I or II e. the macrophage as the first leukocyte arriving to the site of infection 46. The F region can do all the following except a. interact with pseudopods b. bind to B cells c. bind to T cells d. bind to pmns initiate endocytosis e. 47. Lysogeny can be linked to cervical cancer a. b. be linked to Streptococcus pneumoniae infections c. cause the production of a new bacterial strain d. be used as a possible cure for cancer e. all the above 48. Viruses that infect fungal cells probably recognize a. cholesterol b. ergosterol c. pencillin binding proteins d. DNA gyrase e. beta-lactamase 49. Which of the following would be an ineffective antiviral drug? a. one that blocks viral attachment b. one that inhibits viral nucleic acids replication c. one that destroys only the…arrow_forwardThe zone of contact between the T cell and a pathogen-infected cell is called a(n) Select one: a. immunoreceptor tyrosine-based activation motif (ITAM) b. polarization C. cross-presentation center d. granuloma e. immunological synapsearrow_forward
- Synthesis of antibodies is part of: a. Innate immunity b. Adaptive immunity c. Active Passive immunity d. Artiicial passive immunityarrow_forwardExplain why each choice (a-d) is correct or incorrect. Which of the following examples below describes an autoimmune disease? a. Infection and death of T helper cells by a virus, resulting in a loss of adaptive immunity b. Release of bacterial endotoxins that block acetylcholine release result in muscle paralysis. c. Antibody binding to acetylcholine receptors of the motor end plate resulting in muscle weakness. d. Uncontrolled cell division resulting in cell surface abnormalities recognized by NK cells.arrow_forward(1) In antibody structure, where are can we find unique variable domains? A. at the tip of each polypeptide chain B. on the stem region of the antibody C. at the bottom of each polypeptide chain D. only on immunoglobulin E (2) The stem region of the antibody determines the: A. general immunological mechanism of action B. specific inflammatory response C. specific immunological mechnism of action D. shape of the variable domains (3) Antibodies are proteins that consists of ------ polypeptides in a ------ shaped structure. A. three, X B. four, Y C. five, clover D. two, Yarrow_forward
- Which of the following is a type of cytokine? a. mast cell b. lysozyme C c. chemokine O d. immunoglobulinarrow_forwardWhat is the function of cytotoxic T-cells? Select one: a. They are long lived cells that provide life long immunity b. They kill cells that have the antigen they recognize c. They pump out chemical weapons & stimulate other T & B cells d. They produce and secrete antibodiesarrow_forwardA young child is hospitalized with recurring bacterial infections, although she appears to make normal responses to viruses. Which of the following molecules might be defective in her immune system? (select all that could contribute to this condition) Select one or more: a.RAG1/RAG2 b.MCP or DAF c.C3 d.CXCL-8 e.IFN receptorsarrow_forward
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