Question

2s Antigen-Antibody interactons ooour in which of the foliowing ways? A Opsonization BNecation A D. Complement Fixation EAl the above are cormect 26 Antigen binding sites of an anibody are locaed in the A. Light chains alone D. Fab regions of the antbody B Heavy chains sioneCF ion of the antbody E. Soft chains alone 27 Nonspecific chemical defenses include D stomach hydrochlorie acid A. lysozyme E. All of the choices are corredt Blacic acid and electrolytes of sweat Cskins aciic pH and faty acids 28. The body region where oiliary movement helps to sweep miorobes trapped in muous away from that body site is he B. respiratory tract A skin C. digestive tract D. urinary tract E. eyes 29 Antbody molecules cihoulate in lymph, blood, and issue fluids A True 30 In the primary response to an anigen,the first class of anitbody to be secreted ax A o B E gG D 31 In the secondary response to an anigen, te predominant artbody 32 Which process involves a more rapid symthesis and greatly increased tier of antibody when the immune system is subsequenty exposed to the same antigen? A Neutraization B. Opsonization C. Complement fixationDAgutnation E Anamnestic responsa 33. Which process involves antlbodies covering surface receptors on a virus or toxin molecule theroby disrupting A. their actvity? C. Complement foxation DAggtnation E Anamnesic response B Opsonization 34. Superantigens are:A body tissues that the immune system mistakes as foreign species but not in other members C. bacterial toxins that activate T cells at a 100 times greater rate than other antigens D. those that evoke allergic reactions E None of the choices are correct 35 Small foreign molecules that are too small by themselives to elicit an immune response are B. hapten B. celli markers found in some member of a termed A angenic determinant E. None of the choices are cormect C. antigen binding site D. variable region 36. Properties of effective antigens include all the folowing except A foreign to the immune system B. moleoular C. large molecules with a minimum molecular weight of 1,000 D asingle nucleotide 7. Dendritic cells are otherwise known as: A. ansbodes B. sensitized T oells E activated macrophages complexity E cellis or large, complex molecules C. antigen-presenting ces D. Bursa cel 38. Plasma cells: A secrete antibodies B. function in allergic reactions immune reactions C.directy destroy target cels D.suppress E activate B cells and other T cells 39. The progeny cells of a B-cell clone are called D. plasma cells A antbodies Bsensitized T cells C. vahed macrophages. E. Bursa cell B. blood stem clls give rise to immature lymphocytes E. T lymphocytes complete maturation 40. The bone marrow is where C. antigen is filtered from the blood A immune responses to antgen oocur D. antigen is fitered from tissue fluicd MATCH THE FOLLOWING A. Autoimmune Disease B. Delayed Hypersensitivity C. Immediate Hypersensitivity D. Immune Complex Hypersensitivity 42 Type Il Hypersensitivity 43. Type Ill Hypersensitivity 44. Type IV Hypersensitivity 45. Endotoxin from bacteria is an exogenous pyrogen: A. True B False A Tru 46, Inflammatory responses are orchestrated by the immune system and are part of the body'sthird line of defense 47. B lymphocytes and Tlymphocytes mature in the thymus gland B. False A. True B False C. complement humoral immunity trough antbodyprotct E phagocytosis Ainfam mation 48. The contribution of activity cells is manly in: D. cell mediated immunity 49. Which structures are found along lymphatic vessels but are heavily clustered in the armpit groin, and neck? B. ThymusC spleen A.Lymph nodes D. GALT E. Tonsils 50. Platelets: A function in cell-mediated immunity Dproduce and secrete antibodies B. are derived from T-ymphocytes C.function in blood clotting

Answer 1