CHAPTER 4 Host Pathogen Relationships SQs.docx - CHAPTER 4...

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CHAPTER 4 HOST-PATHOGEN RELATIONSHIPS STUDY QUESTIONS 4-18: Which of the following leads to an increase in the susceptibility to infection? (a) malnutrition (b) poverty (c) crowded housing conditions (d) unsanitary conditions (e) all of the above 4-19: Which of the following is a mismatched pair? (a) primary pathogen; disease in uncompromised host (b) pathogenicity islands; virulence gene clusters (c) environmental surveillance; quorum sensing (d) aggregated assemblies of bacteria; biofilm (e) opportunistic; mutually beneficial to host and microorganism 4-20: Organisms that exploit a host’s decreased resistance to infection and cause disease are referred to as_____. (a) auto-inducers (b) opportunists (c) primary pathogens (d) mutualistic pathogens (e) quorum sensors
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4-21: A successful infection by a pathogen requires that _____. (Select all that apply.) (a) the pathogen is able to multiply (b) the host’s immune defenses are never compromised (c) the pathogen is transmissible to new hosts (d) a mutualistic association between host and pathogen forms (e)
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