Principles of Human Physiology, Books a la Carte Plus Mastering A&P with Pearson eText -- Access Card Package (6th Edition)
6th Edition
ISBN: 9780134428970
Author: Cindy L. Stanfield
Publisher: PEARSON
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Textbook Question
Chapter 23, Problem 10E
Foreign antigens phagocytosed by macrophages are presented by
a. class I MHC molecules to cytotoxic T cells.
b. class II MHC molecules to helper T cells.
c. class I MHC molecules to helper T cells.
d. class II MHC molecules to CD8-bearing cells.
e. class II MHC molecules to cytotoxic T cells.
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Students have asked these similar questions
in antibody-mediated immunity, what happens immediately after B cells are activated?
a. the foreign antigen-MHC complex is displayed on the cell surfaces.
b. activated T helper cells interact with the B cells.
c. the B cells are cloned.
D. antibodies combine with antigens on the pathogen surface.
Which of the following statements is not true?(A) An antibody has more than one antigen-binding site.(B) A lymphocyte has receptors for multiple differentantigens.(C) An antigen can have different epitopes.(D) A liver or muscle cell makes one class of MHC molecule.
Activated helper T Cells participate in which of the following processes?
a.) Differentiation of memory B cells
b.) Activation of cytotoxic T Cells
c.) Facilitation of macrophage phagocytosis
d.) All of above
Chapter 23 Solutions
Principles of Human Physiology, Books a la Carte Plus Mastering A&P with Pearson eText -- Access Card Package (6th Edition)
Ch. 23.1 - Prob. 23.1.1QCCh. 23.1 - Name the two central lymphoid tissues. Why are...Ch. 23.2 - Prob. 23.2.1QCCh. 23.2 - Prob. 23.2.2QCCh. 23.3 - Prob. 23.3.1QCCh. 23.3 - Prob. 23.3.2QCCh. 23.3 - Prob. 23.3.3QCCh. 23.3 - Prob. 23.3.4QCCh. 23.3 - Prob. 1CTQCh. 23.3 - Prob. 2CTQ
Ch. 23.3 - Prob. 3CTQCh. 23.3 - Prob. 23.4.1QCCh. 23.3 - Prob. 23.4.2QCCh. 23.3 - Prob. 23.4.3QCCh. 23.3 - Prob. 23.4.4QCCh. 23.4 - Prob. 23.5.1QCCh. 23.4 - Prob. 23.5.2QCCh. 23.4 - Prob. 23.5.3QCCh. 23.5 - Prob. 23.6.1QCCh. 23.5 - Prob. 23.6.2QCCh. 23.5 - Prob. 23.6.3QCCh. 23.5 - Prob. 23.6.4QCCh. 23.6 - Prob. 1CTQCh. 23.6 - Prob. 2CTQCh. 23.6 - Prob. 3CTQCh. 23.6 - Prob. 23.7.1QCCh. 23.6 - Prob. 23.7.2QCCh. 23.6 - Prob. 1aCTQCh. 23.6 - Prob. 2aCTQCh. 23.6 - Prob. 3aCTQCh. 23.6 - Which class of antibody is induced in allergies...Ch. 23.6 - Does rheumatoid arthritis result from a humoral...Ch. 23.6 - Name two lymphoid organs that are innervated by...Ch. 23.6 - Prob. 1bCTQCh. 23.6 - Prob. 2bCTQCh. 23.6 - Prob. 3bCTQCh. 23 - Prob. 1ECh. 23 - Prob. 2ECh. 23 - Prob. 3ECh. 23 - Lymphocytes contact foreign antigen in all of the...Ch. 23 - Which of the following is not true about humoral...Ch. 23 - Macrophages
a. are derived from monocytes.
b....Ch. 23 - Activated cytotoxic T cells release pore-forming...Ch. 23 - Prob. 8ECh. 23 - Prob. 9ECh. 23 - Foreign antigens phagocytosed by macrophages are...Ch. 23 - Of the following events, which occurs earliest in...Ch. 23 - Prob. 12ECh. 23 - Prob. 13ECh. 23 - Prob. 14ECh. 23 - Prob. 15ECh. 23 - Fill in the blank with the abbreviation for the...Ch. 23 - Fill in the blank with the letter that applies to...Ch. 23 - A person who experiences life-threatening allergic...Ch. 23 - Prob. 19ECh. 23 - Prob. 20ECh. 23 - Prob. 21ECh. 23 - Prob. 22ECh. 23 - Prob. 23ECh. 23 - Prob. 24ECh. 23 - Prob. 25ECh. 23 - Immune responses exhibit four features, all of...Ch. 23 - Prob. 27ECh. 23 - Prob. 28ECh. 23 - Prob. 29ECh. 23 - Prob. 30E
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- What type of cells secrete antibodies? A) Cytotoxic T cells B) Helper T cells C) B cells D) Plasma cells E) Antigen-presenting cellsarrow_forwardIn a normal individual, a T cell that interacts with a self-antigen in the thymus will more than likely undergo what process (which answer is best)? A) apoptosis B) release granules C) activation D) extravasation E) anergyarrow_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
- A second exposure to a given foreign antigen elicits a rapid and pronounced immune response becausea. passive immunity occurs after the first exposure.b. some B cells differentiate into memory B cells after the first exposure.c. a greater number of antigen-presenting cells are available due to the earlier exposure.d. the array of class II MHC proteins expressed by antigen-presenting cells is permanently altered by the first exposure.e. Both a and b are correct.arrow_forwardWhich of the following is a characteristic of a cytotoxic T cell? Question 7 options: A) They originate in bone marrow. B) They have antibodies on their surfaces. C) They are responsible for the memory response. D) They recognize antigens associated with MHC I.arrow_forwardA number of minor cancerous cells and infected viruses, such as Epstein Barr (EBV), are able to go undetected by cytotoxic T cell degradation by what possible mechanism? a. the production of normal class I MHC molecule b. helper T cell activation c. the deactivation of the complement system d. tumor antigen expression e. the production of the class II major histocompatability (MHC) moledulearrow_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_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. Which does NOT describe humoral immunity? Group of answer choices a. Antibodies are secreted by T-helper cells b. Humoral immunity is effective against circulating toxins c. Some B cells become memory cells d. cytotoxic t cells can make antibodiesarrow_forward
- Which of the following statements regarding T cells activated by specific antigen is incorrect? a. They receive co-stimulatory signals through CD28. b. They suppress expression of sphingosine 1-phosphate (SIP). c. They take several days before differentiating into effector T cells. d. They cease to secrete and respond to interleukin-2 (IL-2). e. They begin to express CTLA4, which serves to limit T-cell proliferation.arrow_forwardWhich of the choices is required to activate a helper T cell, which in turn can stimulate antibody production by B cells? A)An antibody displayed by a major histocompatibility complex protein B)A major histocompatibility complex protein alone C)An antigen displayed by a major histocompatibility complex protein D)An antigen alonearrow_forwardWhen an immature dendritic cell becomes an activated dendritic cell, all of the following changes occur except _____. a. confinement to T-cell regions of lymph node cortex b. development of elaborate finger-like processes c. upregulated expression of MHC class II at the cell surface d. loss of antigen-processing functions e. expression of Toll-like receptor TLR9.arrow_forward
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