Test 4 – Immune System (Chapters 20 & 21) Name ... - Next2Eden

13) How are T cells “introduced” to antigens? 13) __________A. T cells bind to and phagocytose antigens.B. Antibodies immobilize the antigens for T cell recognition and destruction.C. Antigen-presenting cells link antigenic peptides to MHC proteins to which T cells willattach.D. T cells wait in the blood until an antigen collides with them and binds to their TCR.14) When antibodies develop against a person’s own cells, this is an example of a(n) ________.14) __________A. delayed hypersensitivityB. immediate hypersensitivityC. allergyD. autoimmune disease15) Small, yet complex, encapsulated organs associated with lymphatic vessels are termed________. 15) ________A. lymph folliclesB. axillary nodesC. lymph nodesD. lymphoid follicles16) Which statement or statements is/are false? 16) _________A. The respiratory burst produced by some macrophages releases, amongst other things,free radicals and provides a higher level of defense against internalized pathogenB. Monoclonal antibodies are made by fusing tumor cells and T lymphocytes.C. About 10 liters of fluid are lost to the tissue spaces every 24 hours and are returned tothe bloodstream as lymph.D. B and C17) Which statement is true? 17) _________A. Cytotoxic T cells bear CD4 molecules and recognize antigens that come from outside theAPC (exogenous antigens).B. Lymphoid tissue is distinguished from non-lymphoid tissue by the abundance ofreticular connective tissue.C. In general, lymphocytes reside permanently in lymphoid tissue, rarely moving to otherparts of the body.D. A given pathogen will provoke either a cell-mediated response or an antibody-mediatedresponse but not both.