Microbiology: A Systems Approach
5th Edition
ISBN: 9781259706615
Author: Marjorie Kelly Cowan Professor
Publisher: McGraw-Hill Education
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Chapter 16, Problem 7MCQ
Summary Introduction
Introduction:
Hypersensitivity refers to unwanted immune reactions produced by the normal immune system, such as allergies and autoimmunity. They are referred as an over-reaction of the immune system. There are four types of hyper sensitivity- Type I, also called as immediate hypersensitivity, Type II, also known as cytotoxic dependent hypersensitivity, Type III, also known as Immune Complex Reaction and Type IV, immunity also known as delayed immunity.
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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
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.
Which 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.
Chapter 16 Solutions
Microbiology: A Systems Approach
Ch. 16.1 - Define immunopathology, and describe the two major...Ch. 16.1 - Prob. 2AYPCh. 16.2 - Prob. 3AYPCh. 16.2 - Outline the steps of a type I allergic response,...Ch. 16.2 - Identify three conditions caused by IgE-mediated...Ch. 16.2 - Prob. 6AYPCh. 16.2 - Prob. 7AYPCh. 16.2 - Prob. 8AYPCh. 16.3 - List the three immune components causing cell...Ch. 16.3 - Prob. 10AYP
Ch. 16.3 - Prob. 11AYPCh. 16.4 - Prob. 12AYPCh. 16.4 - Prob. 13AYPCh. 16.5 - Prob. 14AYPCh. 16.5 - List four classes of grafts, and explain how host...Ch. 16.6 - Prob. 16AYPCh. 16.6 - Prob. 17AYPCh. 16.7 - Prob. 18AYPCh. 16.7 - Prob. 19AYPCh. 16.7 - Prob. 20AYPCh. 16 - Prob. 1MCQCh. 16 - Prob. 2MCQCh. 16 - The contact with allergen that results in symptoms...Ch. 16 - Prob. 4MCQCh. 16 - Prob. 5MCQCh. 16 - Prob. 6MCQCh. 16 - Prob. 7MCQCh. 16 - Prob. 8MCQCh. 16 - Prob. 9MCQCh. 16 - Prob. 10MCQCh. 16 - Prob. 11TFCh. 16 - Prob. 12TFCh. 16 - Prob. 13TFCh. 16 - Prob. 14TFCh. 16 - Prob. 15TFCh. 16 - Prob. 1CTQCh. 16 - Summarize the roles of the microbiome and genetics...Ch. 16 - Prob. 3CTQCh. 16 - Prob. 4CTQCh. 16 - Prob. 5CTQCh. 16 - From chapter 15. figure 15.1. How would a persons...Ch. 16 - Prob. 2VCCh. 16 - Prob. 1CM
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