Microbiology: An Introduction (13th Edition)
13th Edition
ISBN: 9780134605180
Author: Gerard J. Tortora, Berdell R. Funke, Christine L. Case, Derek Weber, Warner Bair
Publisher: PEARSON
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Chapter 19, Problem 10R
Summary Introduction
To review:
The Fc region of IgE binds to the receptors of mast cells or basophils and causes degranulation.
Introduction:
Type 1 hypersensitivity can cause the immune response to the exposure of antigen. When IgE antibodies bind to the receptors of mast cells, then they bind to the antigen. It causes degranulation of mast cells and releases granules like histamine and leukotrienes. It leads to the inflammation and breathing difficulties.
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Gram negative cell walls contain lipopolysaccharide (LPS) as a unique
component. All of the following apply to LPS EXCEPT
O LPS is composed of mycolic acids that protect the cell from phagocytosis
LPS is a PAMP that can be recognized by toll-like receptors (TLRS) as a foreign
molecule fo rphagocytosis
O LPS can be a target for specific IgG for ADCC-opsonization
LPS can be recognized by B cells in the aosence of MHC molecules
All of the answers apply, no exception
O LPS is found in the outer membrane of Gram negative cells
Which of the following is true about IgG?
View Available Hint(s) for Part A
It is restricted to effects inside the vascular system.
It stimulates a single immune responses.
It is the most common antibody class.
It cannot cross the placenta to protect an unborn fetus.
A patient develops a blood infection with a capsule-producing strain of E.
coli. Phagocytosis by macrophage will be essential to destroy the bacteria
and resolve the infection. Which of the following will be dirertly
required to allow ADCC-opsonization of the encapsulated E. coli:
O Toll-like receptor (TLR)-induced secretion of tumor necrosis factor alpha
O Release of C3a to the extracellular fluids
O Presence of MHC II on the surface of the macrophage
O Presence of IgG receptors (Fc-gamma-R) on the macrophage
All of the answers apply
Chapter 19 Solutions
Microbiology: An Introduction (13th Edition)
Ch. 19 - DRAW IT Label IgE, antigen, and mast cell, and add...Ch. 19 - Prob. 2RCh. 19 - Discuss the roles of antibodies and antigens in an...Ch. 19 - Prob. 4RCh. 19 - Prob. 5RCh. 19 - Differentiate the three types of autoimmune...Ch. 19 - Summarize the causes of immunodeficiencies. What...Ch. 19 - Prob. 8RCh. 19 - Prob. 9RCh. 19 - Prob. 10R
Ch. 19 - Prob. 1MCQCh. 19 - What does pluripotent mean? a. Ability of a single...Ch. 19 - Prob. 3MCQCh. 19 - Antibodies against HIV are ineffective for all of...Ch. 19 - Prob. 5MCQCh. 19 - Which antibodies will be found naturally in the...Ch. 19 - Prob. 7MCQCh. 19 - Use the following choices to match the type of...Ch. 19 - Use the following choices to match the type of...Ch. 19 - Prob. 10MCQCh. 19 - When and how does our immune system discriminate...Ch. 19 - The first preparations used for artificially...Ch. 19 - Prob. 3ACh. 19 - Prob. 4ACh. 19 - Prob. 1CAECh. 19 - Prob. 2CAECh. 19 - Prob. 3CAECh. 19 - Prob. 4CAE
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