Brock Biology of Microorganisms (15th Edition)
15th Edition
ISBN: 9780134261928
Author: Michael T. Madigan, Kelly S. Bender, Daniel H. Buckley, W. Matthew Sattley, David A. Stahl
Publisher: PEARSON
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Textbook Question
Chapter 26.2, Problem 1CR
Identify at least four mechanisms by which a healthy host resists infection.
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Which of the following virulence factors among A-D is correctly matched with its definition or characterization?
A) O Invasins: pathogen proteins that prevent opsonization of the pathogen
B) O Phase variation: allows pathogen to switch between different forms of an extracellular antigen (e.g., flagellum)
C) O Protein A. a microbial factor that allows for attachment, typically a surface protein or surface glycoprotein
D) O Prevention of lysosome:phagosome fusion mechanism employed by an extracellular pathogen
E) OM protein, Opa protein: enzymes that interfere with the functioning of antibodies
What are the three things required for an infection to occur?
Give an example of each.
Pathogenic infections induce damage to the host by a variety of mechanisms. While many mechanisms are direct effects of the pathogen, some damaging mechanisms result from the immune response to the infection. Examples of damage caused by the host immune response are:
a) Exotoxin production, endotoxin
b) Cell-mediated inmunity, direct cytopathic effect
c) Endotoxin, inmmunune complexes
d) Direct cythopathic effect, endotoxin
e) Cell-mediated inmunity, inmmunune complexes
Chapter 26 Solutions
Brock Biology of Microorganisms (15th Edition)
Ch. 26.1 - What major class of immune cells mediates an...Ch. 26.1 - Prob. 2MQCh. 26.1 - Compare and contrast the major features of innate...Ch. 26.2 - Describe host tissue specificity for pathogens.Ch. 26.2 - Identify physical and chemical barriers to...Ch. 26.2 - What other factors may control the outcome of an...Ch. 26.2 - Identify at least four mechanisms by which a...Ch. 26.3 - Describe the circulation of a leukocyte from the...Ch. 26.3 - What soluble molecules determine whether a...Ch. 26.3 - Cells involved in innate and adaptive immunity...
Ch. 26.4 - How does the development of B, T, and NK cells...Ch. 26.4 - Distinguish between the primary lymphoid organs...Ch. 26.4 - Leukocytes are differentiated white blood cells...Ch. 26.5 - Although technically not part of the immune...Ch. 26.5 - Describe the mechanisms by which circulating...Ch. 26.5 - Pathogens may colonize host tissues when...Ch. 26.6 - Identify a PAMP shared by a group of...Ch. 26.6 - Outline the general features of a signal...Ch. 26.6 - Innate recognition of common pathogens occurs...Ch. 26.7 - Identify the mechanism used by phagocytes to...Ch. 26.7 - Describe several reasons why phagocytes are not...Ch. 26.7 - Phagocytosis is the engulfing of infectious...Ch. 26.8 - Prob. 1MQCh. 26.8 - Identify the major symptoms of localized...Ch. 26.8 - Fever and inflammation, characterized by pain,...Ch. 26.9 - In what ways does the classical pathway of...Ch. 26.9 - What is opsonization, and how does opsonization...Ch. 26.9 - Why are the mannose-binding lectin and alternative...Ch. 26.9 - The complement system is composed of soluble...Ch. 26.10 - Prob. 1MQCh. 26.10 - Prob. 2MQCh. 26.10 - Prob. 1CRCh. 26 - Prob. 1AQCh. 26 - Describe the potential problems that would arise...Ch. 26 - Prob. 3AQCh. 26 - Prob. 4AQ
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