Foundations in Microbiology
10th Edition
ISBN: 9781259705212
Author: Kathleen Park Talaro, Barry Chess Instructor
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 15.L1, Problem 6MCQ
CD4 cells are ________ cells and CD8 cells are _____ cells.
a. killer, suppressor
b. helper, cytotoxic
c. cytotoxic, helper
d. B, T
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All of the following regarding CD1a, b, and c are true except _____.
a. They have a more limited tissue distribution than CD1d.
b. CD1b associates with CD1e for the purpose of lipid transfer.
c. They cycle through endosomal vesicles in different locations of the cell with the assistance of adaptor proteins.
d. They possess different sizes of antigen-binding sites.
e. They all present lipid antigens.
f. They cycle continually between the cell surface and endosomal compartments, allowing exchange of antigens.
g. CD1b can accommodate more than one antigen simultaneously.
h. They are expressed by double-positive thymocytes and facilitate positive selection of CD1-restricted T cells.
i. They present antigens to NKT cells.
Enhanced phagocytosis of a cell by the binding of aspecific protein is called ________.a. endocytosisb. opsonizationc. anaphylaxisd. complement activation
Notice the comment that after treatment your CD4 count should rise. Why does treatment allow CD4s to increase?
A
Anti-retroviral therapy consists of transfusions of CD4 cells.
B
Anti-retroviral therapy directly stimulates cell division of CD4 cells, so their numbers increase.
C
Anti-retroviral therapy will prevent HIV from replicating and killing your CD4s. CD4s can grow back to some degree.
Chapter 15 Solutions
Foundations in Microbiology
Ch. 15.1 - Summarize the general features of adaptive,...Ch. 15.1 - Prob. 2ELOCh. 15.1 - Prob. 3ELOCh. 15.1 - Prob. 4ELOCh. 15.1 - Describe the major events in the origin of...Ch. 15.1 - Describe the development of antigen receptors on...Ch. 15.1 - Prob. 7ELOCh. 15.1 - Discuss what is meant by immunocompetence, immune...Ch. 15.1 - What function do receptors play in specific immune...Ch. 15.1 - Prob. 3CYP
Ch. 15.1 - Explain the clonal selection theory of receptor...Ch. 15.1 - Why must the body develop tolerance to seit?Ch. 15.1 - Prob. 6CYPCh. 15.1 - What is happening during lymphocyte maturation?Ch. 15.1 - Prob. 8CYPCh. 15.2 - Explain the characteristics of antigens, the...Ch. 15.2 - Discuss the main categories of antigens, based on...Ch. 15.2 - What are antigens, immunogens, and epitopes, and...Ch. 15.2 - How do foreignness, size, and complexity...Ch. 15.2 - Compare five unique types of antigens, and explain...Ch. 15.3 - Describe the cooperative interactions between...Ch. 15.3 - Discuss the actions of interleukins in the early...Ch. 15.3 - Prob. 12ELOCh. 15.3 - Prob. 13ELOCh. 15.3 - Prob. 14ELOCh. 15.3 - Prob. 15ELOCh. 15.3 - Prob. 12CYPCh. 15.3 - Prob. 13CYPCh. 15.3 - Prob. 14CYPCh. 15.3 - Prob. 15CYPCh. 15.3 - Prob. 16CYPCh. 15.3 - Prob. 17CYPCh. 15.3 - Prob. 18CYPCh. 15.3 - Discuss how superantigens are different from other...Ch. 15.4 - Prob. 16ELOCh. 15.4 - Prob. 17ELOCh. 15.4 - Prob. 18ELOCh. 15.4 - Prob. 19ELOCh. 15.4 - Prob. 20CYPCh. 15.4 - What are the functions of plasma cells, clonal...Ch. 15.4 - Prob. 22CYPCh. 15.4 - Prob. 23CYPCh. 15.4 - Describe the attachment of antibodies to antigens....Ch. 15.4 - Prob. 25CYPCh. 15.4 - Prob. 26CYPCh. 15.4 - What causes the latent period and the anamnestic...Ch. 15.5 - Prob. 20ELOCh. 15.5 - Differentiate between natural and artificial...Ch. 15.5 - Expand on the four combinations of the defining...Ch. 15.5 - Prob. 28CYPCh. 15.5 - Name at least two major ways in which natural and...Ch. 15.5 - Prob. 30CYPCh. 15.6 - Explain the purposes of immunotherapy and...Ch. 15.6 - Describe the sources and uses of artificial...Ch. 15.6 - Discuss which factors are involved in vaccine...Ch. 15.6 - Identify the major categories of vaccine antigens,...Ch. 15.6 - Prob. 27ELOCh. 15.6 - Describe the preparation of killed vaccines; live,...Ch. 15.6 - Prob. 32CYPCh. 15.6 - Prob. 33CYPCh. 15.6 - Prob. 34CYPCh. 15.L1 - Which of these characteristics is not a major...Ch. 15.L1 - Prob. 2MCQCh. 15.L1 - In humans, B cells mature in the _____________ and...Ch. 15.L1 - Small, simple molecules are_________antigens. a....Ch. 15.L1 - Which type of cell actually secretes antibodies?...Ch. 15.L1 - CD4 cells are ________ cells and CD8 cells are...Ch. 15.L1 - Prob. 7MCQCh. 15.L1 - Prob. 8MCQCh. 15.L1 - Prob. 9MCQCh. 15.L1 - Prob. 10MCQCh. 15.L1 - Prob. 11MCQCh. 15.L1 - Prob. 12MCQCh. 15.L1 - Prob. 13MCQCh. 15.L1 - A living microbe with reduced virulence that is...Ch. 15.L1 - A vaccine that contains parts of viruses is called...Ch. 15.L1 - Prob. 16MCQCh. 15.L1 - Prob. 17MCQCh. 15.L1 - Prob. 18MCQCh. 15.L1 - Prob. 19MCQCh. 15.L1 - Prob. 20MCQCh. 15.L1 - Prob. 1CSRCh. 15.L1 - Prob. 2CSRCh. 15.L1 - Prob. 3CSRCh. 15.L1 - Using words and arrows, complete a flow outline of...Ch. 15.L1 - Prob. 2WCCh. 15.L1 - Prob. 3WCCh. 15.L1 - Prob. 4WCCh. 15.L1 - Prob. 5WCCh. 15.L1 - Combine information on the functions of different...Ch. 15.L2 - Prob. 1CTCh. 15.L2 - Prob. 2CTCh. 15.L2 - Double-stranded DNA is a large, complex molecule,...Ch. 15.L2 - Prob. 4CTCh. 15.L2 - Describe the relationship between an antitoxin, a...Ch. 15.L2 - Prob. 6CTCh. 15.L2 - Prob. 7CTCh. 15.L2 - Prob. 8CTCh. 15.L2 - Prob. 9CTCh. 15.L2 - Prob. 1VCCh. 15.L2 - Examine figure 6.6c and determine which components...
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