front 1 Which of the following is a characteristic of antibodies? | back 1 B. composed of heavy and light polypeptide chains |
front 2 Which of the following is associated with passive immunity? | back 2 passage of IgG antibodies from a pregnant mother to her fetus |
front 3 Which of the following is not a type of T cell? | back 3 antigenic |
front 4 B lymphocytes develop immunocompetence in the _____. | back 4 Bone marrow |
front 5 Which of the following is not a function of the inflammatory response? | back 5 Replaces injured tissues with connective tissues |
front 6 The redness and heat of an inflamed area are due to a local hyperemia caused by | back 6 vasodialation |
front 7 The antibody molecule is held together by ____ bonds. | back 7 disulfide |
front 8 In clonal selection of B cells, which substance is responsible for determining which cells will eventually become cloned? | back 8 Antigen |
front 9 Which of the following statements regarding NK cell is a false or incorrect statement? | back 9 NK cells are a type of neutrophil |
front 10 The process whereby neutrophils and other white blood cell are attracted to an inflammatory site is called | back 10 chemotaxis |
front 11 Small molecules that bind with self proteins to produce antigenic substances are called ____. | back 11 haptens |
front 12 Which of the following is the correct sequence of events in phagocytosis | back 12 Chemotaxis, adherence, ingestion, digestion, killing |
front 13 The only T cells that can attack and kill other cells are the _____. | back 13 Cytotoxic cells |
front 14 Which of the following does not respond to cell-mediated immunity? | back 14 Pathogens in the CNS |
front 15 ______ predominate at the sites of chronic infections. | back 15 Macrophages |
front 16 Interferons _______. | back 16 Interfere with viral replication within cells |
front 17 ______ determine what specific foreign substances our adaptive immune system will be able to recognize and resist. | back 17 our genes |
front 18 Regulatory T cells _______. | back 18 may function in preventing autoimmune reactions |
front 19 Select the correct definition about tissue grafts. | back 19 Isografts are between identical twins |
front 20 Which of the following below does not describe antigens? | back 20 Antigens only come from microbes |
front 21 ______ are released by activated T cells and macrophages to mobilize immune cells an attract other leukocytes into the air. | back 21 Cytokines |
front 22 Which of the following is a part of the second line of defense against microorganisms? | back 22 Phagocytes |
front 23 Which of the following is characteristic of complete antigens? | back 23 reactivity with an antibody |
front 24 B cell respond to the initial antigen challenge by ____. | back 24 Producing progeny cells that include plasma cells and memorycells |
front 25 Graft rejection may be caused by _______. | back 25 using a xenograft |
front 26 Cancer cells and virus-infected cells can be killed before activation of adaptive immunity by _____. | back 26 natural killer cells |
front 27 Complement proteins and antibodies coat a microorganism and provide binding sites, enabling macrophages and neutrophils to phagocytize the organism. This phenomenon is termed ____. | back 27 Opsonization |
front 28 Which of the following is not characteristic of the adaptive immune system? | back 28 It is specific for a given organ |
front 29 Monoclonal antibodies are used for the diagnosis of all of the following except ____. | back 29 Juvenile diabetes |
front 30 Which of the following would be classified as a delayed hypersensitivity reaction? | back 30 Allergic contact dermatitis |
front 31 Innate immune system defenses include _____. | back 31 Phagocytosis |
front 32 Which of the following statements is considered incorrect or false? | back 32 Class II MHC molecules appear only on the surface of antigen - presenting cells, thymic cells, and T cells that have been active by exposure to antigens |
front 33 Phagocyte mobilization involves ______. | back 33 Mainly neutrophil and macrophage migration into inflamed areas |
front 34 Fever ______. | back 34 Production is regulated by chemicals that reset the body's thermostat to a higher setting |
front 35 Immunocompetence _______. | back 35 is the ability of individual cells to recognize a specific antigen by binding to it. |
front 36 Select the correct statement about the prevention of immune attack on "self". | back 36 Tolerance is developed during fetal life |
front 37 Select the correct statement about active and passive immunity. | back 37 active and passive humoral immunity are both mechanisms of adaptive immunity that use antibodies |
front 38 Cytotoxic T cells ______ | back 38 are the only T cells that can directly attack and kill other cells |
front 39 Helper T cells _____. | back 39 function in the adaptive immune system activation |
front 40 Select the correct statement about immunodeficiency. | back 40 The causative agent in acquired immune deficiency syndrome is a virus that recognized CD4 proteins. |
front 41 Which of the following is true of immediate hypersensitivities | back 41 They involve IgE antibodis and the release of histamine from mast cells and basophils |
front 42 Delayed hypersensitivities ________. | back 42 Include allergic contact dermatitis. |
front 43 Natural Killer (nk) cells ______. | back 43 can kill the cancer cells before the immune system is activated. |
front 44 Select the correct statement about antiges. | back 44 One antigen may have many different antigenic determinants and may therefore cause the formation of more than one antibody |
front 45 Clonal selection of B cells ______. | back 45 Results in the formation of plasma cells |
front 46 The primary immune response _____. | back 46 has a lag period while B cells proliferate and differentiate into plasma cells |
front 47 Select the correct statement about the function of antibodies. | back 47 Complement fixation is the main mechanism by which antibodies provide proection |
front 48 Which of the following cells is the most critical cell in immunity? | back 48 Helper T cell |
front 49 Which of the following is not an autoimmune disease? | back 49 Type II disease |
front 50 Which of the following is not a mechanism for the development of autoimmune disorders? | back 50 A second exposure to an allergen |
front 51 Select the correct statement about complement | back 51 An adaptive immune mechanism is often involved in directing complement to its target |
front 52 Which of the following is true about the number of binding sites per functional antibody unit? | back 52 IgM contains 10 binding sites |
front 53 Antibody functions include all of the following except | back 53 cross-linking cell-bound antigens on red blood cells when blood types are properly matched |
front 54 Which statement is true about T cells? | back 54 Their proliferation is enhanced by interleukins 1 and 2 |
front 55 Toll-like receptors (TLRs) trigger the release of ____ to attract white blood cells to the scene. | back 55 Cytokines |
front 56 Which of the following is not a method by which antibodies work? | back 56 activating cytokines |
front 57 What is the role of interferon in defense against disease? | back 57 Protects cells that have not yet been infected by viruses |
front 58 Which of the following statements is a false or incorrect statement? | back 58 After becoming immunocompetent, the naïve T cells and B cells are exported to the bone marrow where the encounters with antigens occur |