ANATOMY & PHYSIOLOGY 4/E PAC 1 SEMESTER
4th Edition
ISBN: 9781265061173
Author: McKinley
Publisher: MCG CUSTOM
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Chapter 22, Problem 5CAL
Summary Introduction
Introduction:
The normal cellular immunity includes the immunity of T-lymphocytes and B-lymphocytes. The antibodies and plasma cells are present in the extracellular fluid and are generally produced by the humoral immunity. In the absence of this humoral immunity, the antibodies do not produce and bind to antigens.
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which two of following statements are true for an antigen prsent cell such as dendritic cell?
a. Phagocytes are extra cellular pathogens
b. Display processed pathoic peptide on the surface of the cell
c. Produce antibodies specific for a pathogen
d. Activate naive erythrocytes
Which of the following best describes the movement of a T cell through a lymph node?
a. It enters via efferent lymphatics and exits via the bloodstream.
b. It enters via afferent lymphatics and exits via the bloodstream.
c. It enters via the bloodstream and exits via afferent lymphatics.
d. It enters via the bloodstream and exits via the bloodstream.
e. It enters via the bloodstream and exits via efferent lymphatics.
Unlike naive T lymphocytes, Select one:
a. memory T lymphocytes obtain energy from glycolysis.
b. memory T lymphocyte populations may include TH1 or TH2 T cells.
c. effector T cells do not undergo mitosis when stimulated by antigen.
d. effector T cells do not express mTORc1.
e. effector T cells undergo high rates of autophagy.
Chapter 22 Solutions
ANATOMY & PHYSIOLOGY 4/E PAC 1 SEMESTER
Ch. 22.1 - Which pathogen must enter a cell to replicate?...Ch. 22.2 - Prob. 2WDYLCh. 22.2 - What is the definition of a cytokine? How are...Ch. 22.2 - Prob. 4WDYLCh. 22.3 - Prob. 5WDYLCh. 22.3 - Prob. 6WDYLCh. 22.3 - Prob. 7WDYLCh. 22.3 - How do NK cells accomplish the task of eliminating...Ch. 22.3 - Prob. 9WDYLCh. 22.3 - Prob. 10WDYL
Ch. 22.3 - Prob. 11WDYLCh. 22.3 - Prob. 12WDYLCh. 22.4 - Prob. 13WDYLCh. 22.4 - What distinguishes a hapten from an antigen?Ch. 22.4 - Prob. 15WDYLCh. 22.4 - Which type of MHC class molecules is found on all...Ch. 22.4 - Prob. 17WDYLCh. 22.5 - Prob. 18WDYLCh. 22.5 - What would happen if a thymocyte that failed the...Ch. 22.5 - Prob. 20WDYLCh. 22.6 - Prob. 21WDYLCh. 22.6 - How do cytokines released by helper T-lymphocytes...Ch. 22.6 - Prob. 23WDYLCh. 22.6 - Prob. 24WDYLCh. 22.6 - Prob. 25WDYLCh. 22.7 - Prob. 26WDYLCh. 22.7 - Prob. 27WDYLCh. 22.7 - Prob. 28WDYLCh. 22.8 - Prob. 29WDYLCh. 22.8 - What are the six major functions of antibodies?...Ch. 22.8 - Which subclass of antibodies is most prevalent?...Ch. 22.9 - Prob. 32WDYLCh. 22.9 - Prob. 33WDYLCh. 22.9 - Prob. 34WDYLCh. 22 - _____ 1. All of the following are phagocytic cells...Ch. 22 - _____ 2. This cell releases cytokines to activate...Ch. 22 - _____ 3. This cell is activated by binding...Ch. 22 - _____ 4. These two cells destroy an infected cell...Ch. 22 - _____ 5. All of the following are functions of...Ch. 22 - _____ 6. The four characteristics of adaptive...Ch. 22 - _____ 7. During which process does additional...Ch. 22 - _____ 8. This chemical is released by...Ch. 22 - _____ 9. The correct sequence of the major events...Ch. 22 - Prob. 10DYKBCh. 22 - Compare the general characteristics of innate...Ch. 22 - Define the inflammatory response, and explain its...Ch. 22 - Describe an antigen.Ch. 22 - Describe class I and class II MHC molecules, and...Ch. 22 - Prob. 15DYKBCh. 22 - Prob. 16DYKBCh. 22 - Explain the general function of cytotoxic...Ch. 22 - Describe both the function of antibodies and...Ch. 22 - There are two branches of adaptive immunity:...Ch. 22 - Prob. 20DYKBCh. 22 - Prob. 1CALCh. 22 - Prob. 2CALCh. 22 - Prob. 3CALCh. 22 - Prob. 4CALCh. 22 - Prob. 5CALCh. 22 - Prob. 1CSLCh. 22 - Prob. 2CSLCh. 22 - Prob. 3CSL
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- B cells that produce and release large amounts of antibody are called: a. Memory cells b. Basophils c. Plasma cells d. Killer cells e. Neutrophilsarrow_forwardWhich of the following is both a phagocyte and an antigen-presenting cell? a. NK cell b. eosinophil c. neutrophil d. macrophagearrow_forwardWhich of the following statements are true for antigen presentation. a. Antigen presentation means that other cells attach the pathogen first and present it to T cells. b. Antigen-presenting cells display protein fragments, resulting from the digestion of the pathogen, in complex with MHC receptor to B cells c. Antigen presenting cells display protein fragments, resulting from the digestion of the pathogen, in complex with MHC receptor on their surface. d. Antigen-presenting cells are phagocytic cells e. Antigen presentation is required for T cell activation f. Cytokines released by macrophages are required for T cell activation g. T cell receptors recognize the MHC receptors in complex with antigen fragments displayed by antigen-presenting cells. h. Phagocytic cells are involved in innate immunity. Therefore they have no role in T-cell activationarrow_forward
- An antigen must be considered: a. An antibody b. To produce cytokines c. Foreign d. A T lymphocytearrow_forwardCHAPTER 20 The Lymphatic System and Immunity Matching SECTION 3 Revie w Match each lettered term with the most closely related description. a. opsonization 1 b. helper T cells Two parallel pairs of polypeptide chains Found on helper T cells C. antibody d. class II MHC 3 Active and passive 4 Transfer of antibodies e. costimulation Attacked by HIV f. IgM 6 Enhances phagocytosis g. class I MHC h. IgG 7 MHC proteins present in the plasma membranes of all nucleated cells i. passive immunity j. anaphylaxis 8 Differentiate into memory and plasma cells 9 MHC proteins present in the plasma membranes of all APCS and lymphocytes 9 k. CD4 markers 10 I. acquired immunity 10 Antibodies used to determine blood type 11 m. B lymphocytes 11 Secondary binding process required for T cell activation 12 12 Accounts for 80 percent of all immunoglobulins 13 13 Circulating allergen stimulates mast cells throughout body Match each lettered term with thearrow_forwardWhich of the following statements about T cells is false? a. Helper T cells release cytokines while cytotoxic T cells kill the infected cell. b. Helper T cells are CD4+, while cytotoxic T cells are CD8+. c. MHC II is a receptor found on most body cells, while MHC I is a receptor found on immune cells only. d. The T cell receptor is found on both CD4+ and CD8+ T cells.arrow_forward
- An MHC class II/antigen complex on the surface of an antigen-presenting cell (APC) binds to a T-cell receptor. What results from this interaction? Select one: a. Other immune cells are stimulated to respond to the antigen. b. Other immune cells are inhibited. c. The T cell responds by directly destroying the APC. d. The antigen is phagocytized by the T cell.arrow_forwardIn regard to antigen presentation, MHC class I molecules usually present peptides derived from _____, whereas MHC class II molecules usually present peptides derived from _____. a. intracellular cytosolic sources; vesicular system b. phagolysosome; proteasomes c. MIIC; self proteins d. CLIP; HLA-DM e. endocytic vesicles; endoplasmic reticulum.arrow_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
- The 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_forwardSelect all of the following statetments that apply to immunological memory: A. A small population of plasma cells secrete pathogen-specific antibody long after pathogen clearance from the body. B. Memory T cells and memory B cells originate in secondary lymphoid tissue through colonal expansion. C. Memory T cells are produced during secondary immune responses, but not during primary immune responses. D. During a primary immune response, effector B cells outnumber memory cells. E. protective immunity persists for the same period regardless of the type of pathogen F. Memory B cells generated in secondary immune responses are more effective than memory B cells made in primary immune responses because of affinity maturationarrow_forwardExplain why each choice (a-d) is correct or incorrect. Allergens differ from antigens because a. Allergens produce an abnormally large immune response to what is an otherwise harmless particle. b. Allergens do not involve the leucocytes, they simple stimulate the inflammatory response. c. Allergens are only active seasonally and are generally harmless to the body. d. Allergens are primarily plant derived while antigens are bacterial or viral in nature.arrow_forward
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