Anatomy & Physiology (6th Edition)
6th Edition
ISBN: 9780134156415
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Chapter 20, Problem 5MC
Which antibody class is abundant in body secretions? (a) IgA, (b) IgD, (c) IgE, (d) IgG, (e) IgM.
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How many types of antibodies are there?
(a) Five.
(b) Three.
(c) Two.
(d) Four.
Select the best answer or answers from the choices given: Which antibody class is abundant in body secretions? (a) IgA, (b) IgD, (c) IgE, (d) IgG, (e) IgM.
T cells and B cells can be activated only by, (a) pathogenic microorganisms.(b) interleukins, interferons, and colony-stimulating factors. (c) cells infected with viruses, bacterial cells, or cancer cells. (d) exposure to a specific antigen bound to a MHC protein on a plasma membrane.
Chapter 20 Solutions
Anatomy & Physiology (6th Edition)
Ch. 20.1 - What distinguishes the innate defense system from...Ch. 20.1 - What is the first line of defense against disease?Ch. 20.2 - What is opsonization and how does it help...Ch. 20.2 - Under what circumstances might NK cells kill our...Ch. 20.2 - What are the cardinal signs of inflammation and...Ch. 20.3 - Name three key characteristics of adaptive...Ch. 20.3 - What is the difference between a complete antigen...Ch. 20.3 - What marks a cell as self as opposed to nonselfCh. 20.4 - What event (or observation) signals that a B or T...Ch. 20.4 - Which of the following T cells would survive...
Ch. 20.4 - Prob. 11CYUCh. 20.4 - In clonal selection, who does the selecting? What...Ch. 20.5 - Why is the secondary response to an antigen so...Ch. 20.5 - Prob. 14CYUCh. 20.5 - Which class of antibody is most abundant in blood?...Ch. 20.5 - List four ways in which antibodies can bring about...Ch. 20.5 - Prob. 17CYUCh. 20.6 - Class II MHC proteins display what kind of...Ch. 20.6 - Which type of T cell is the most important in both...Ch. 20.6 - Describe the killing mechanism of cytotoxic T...Ch. 20.7 - Prob. 21CYUCh. 20.7 - Prob. 22CYUCh. 20 - All of the following are considered innate body...Ch. 20 - The process by which neutrophils squeeze through...Ch. 20 - Antibodies released by plasma cells are involved...Ch. 20 - Which of the following antibodies can fix...Ch. 20 - Which antibody class is abundant in body...Ch. 20 - Small molecules that must combine with large...Ch. 20 - Lymphocytes that develop immunocompetence in the...Ch. 20 - Cells that can directly attack target cells...Ch. 20 - Prob. 9MCCh. 20 - The cell type most often invaded by HIV is a(n)...Ch. 20 - Complement fixation promotes all of the following...Ch. 20 - Using the letters from column B, match the cell...Ch. 20 - Besides acting as mechanical barriers, the skin...Ch. 20 - Explain why attempts at phagocytosis are not...Ch. 20 - What is complement? How does it cause bacterial...Ch. 20 - Interferons are referred to as antiviral proteins....Ch. 20 - Differentiate between humoral and cellular...Ch. 20 - Although the adaptive immune system has two arms,...Ch. 20 - Define immunocompetence and self-tolerance. How is...Ch. 20 - Differentiate between a primary and a secondary...Ch. 20 - Prob. 21SAQCh. 20 - What is the role of the variable regions of an...Ch. 20 - Name the five antibody classes and describe where...Ch. 20 - How do antibodies help defend the body?Ch. 20 - Do vaccines produce active or passive humoral...Ch. 20 - Prob. 26SAQCh. 20 - Describe the specific roles of helper, regulatory,...Ch. 20 - Prob. 28SAQCh. 20 - Prob. 29SAQCh. 20 - What events can result in autoimmune disease?Ch. 20 - Prob. 1CCSCh. 20 - Prob. 2CCSCh. 20 - Prob. 3CCSCh. 20 - Prob. 4CCSCh. 20 - Remember Mr. Ayers, the bus driver from Chapter...
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- What is the difference between innate immunity and adaptive immunity?arrow_forwardThe best definition of an antigen is:(a) A foreign molecule in the body(b) A chemical that elicits antibody production and binds tothat antibody(c) A molecule that binds to antibody(d) A pathogen(e) An enzyme that activates B cellsarrow_forwardLymphocytes responsible for providing cell-mediated immunity are called(a) macrophages. (b) B cells. (c) plasma cells. (d) cytotoxic T cells.arrow_forward
- Which of the following immune cells/molecules are most ef-fective at destroying intracellular pathogens?(a) TH cells (d) B cells(b) Antibodies (e) Complement(c) TC cellsarrow_forwardPerforins are destructive proteins associated with the activity of, (a) T cells. (b) B cells. (c) macrophages. (d) plasma cells.arrow_forwardThe immune system of a person is supressed. He was found positive for a pathogen in the diagnostic test ELISA.(a) Name the disease, the patient is suffering from.(b) Which pathogen is identified by ELISA test?(c) Which cells of the body are attacked by the pathogen?(d) Suggest preventive measure of the infection.arrow_forward
- Which of the following lists contains cells that are typically considered to be associated with the innate immune response? Question 14 options: A) neutrophils, macrophages, T cells B) neutrophils, macrophages, NK cells C) B cells, T cells, and NK cells D) basophils, T cells, mast cellsarrow_forwardOne of the common characteristics of lymphocytes (1), neutrophils, and macrophages) the resulting immunity is not specialized b) they are the second line of defense c) they are all white cells d) they produce a cellular responsearrow_forwardPhagocytes move through capillary walls by squeezing between adjacent endothelial cells, a process known as (a) diapedesis. (b) chemotaxis. (c) adhesion. (d) perforation.arrow_forward
- A person shows unwelcome immunogenic reactions while exposed to certain substances.(a) Name this condition.(b) What common term is given to the substances responsible for this condition?(c) Name the cells and the chemical substances released which cause such reactions.arrow_forwardPhagocytes move through capillary walls by squeezing between adjacent endothelial cells, a process known as (a) emigration. (b) chemotaxis. (c) adhesion. (d) perforation.arrow_forwardVaccination increases the number of(A) different receptors that recognize a pathogen.(B) lymphocytes with receptors that can bind to the pathogen.(C) epitopes that the immune system can recognize.(D) MHC molecules that can present an antigenarrow_forward
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