Microbiology: A Systems Approach
5th Edition
ISBN: 9781259706615
Author: Marjorie Kelly Cowan Professor
Publisher: McGraw-Hill Education
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Chapter 12, Problem 3CTQ
Antibiotic-resistance genes, as well as other virulence factor genes, are easily passed between bacterial cells through horizontal gene transfer.
- a. Conduct additional research and summarize the unique pathogenic characteristics of Escherichia coli O157:H7; describe how it acquired these traits over time.
- b. Conduct additional research on New Delhi metallo-beta-lactomase 1 strains of bacteria and explain why medical tourism poses a serious threat to the spread of this organism. Provide evidence to support your explanation.
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In a series of infection experiments, a researcher discovers that the ID50 value for the infectious bacterium Parasiticum mucoides is 2,000, and that the ID50 for another infectious bacterium, Donoteatum thisbacterium, is 150. Given these data, a person exposed to 1,000 bacteria of each type would be more likely to be infected by which bacterium?
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In a series of infection experiments, a researcher discovers that the ID50 value for the infectious bacterium Parasiticum mucoides is 100, and that the ID50 for another infectious bacterium, Donoteatum thisbacterium, is 15,000. Given these data, a person exposed to 1,000 bacteria of each type would be more likely to be infected by which bacterium?
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There is no way to know given the information provided
Both infections are equally likely
Parasiticum mucoides
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Some strains of Escherichia coli bacteria have acquired the ability to produce the harmful Shiga toxin, normally produced by Shigella dysenteriae. Which statements best explain why this occurs? Mark all that apply.
A. conjugation between two different species of bacteria allowed both strains of bacteria to express a virulence factor
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Chapter 12 Solutions
Microbiology: A Systems Approach
Ch. 12.1 - State the main goal of antimicrobial treatment.Ch. 12.1 - Identify sources of the most commonly used...Ch. 12.1 - Summarize two methods for testing antimicrobial...Ch. 12.1 - Prob. 4AYPCh. 12.2 - Prob. 5AYPCh. 12.2 - Describe the five major targets of antimicrobial...Ch. 12.2 - Identify which categories of drugs are most...Ch. 12.3 - Prob. 8AYPCh. 12.3 - Trace the development of penicillin...Ch. 12.3 - Prob. 10AYP
Ch. 12.3 - Prob. 11AYPCh. 12.3 - Prob. 12AYPCh. 12.3 - Prob. 13AYPCh. 12.3 - Identify the cellular target of quinolones, and...Ch. 12.3 - Prob. 15AYPCh. 12.3 - Prob. 16AYPCh. 12.3 - Prob. 17AYPCh. 12.3 - Prob. 18AYPCh. 12.3 - Describe two major modes of action of antiviral...Ch. 12.4 - Prob. 20AYPCh. 12.4 - Prob. 21AYPCh. 12.4 - Discuss at least three novel antimicrobial...Ch. 12.5 - Distinguish between drug toxicity and allergic...Ch. 12.5 - Prob. 24AYPCh. 12 - Prob. 1MCQCh. 12 - Prob. 2MCQCh. 12 - Prob. 3MCQCh. 12 - Microbial resistance to drugs is acquired through...Ch. 12 - Prob. 5MCQCh. 12 - Prob. 6MCQCh. 12 - Prob. 7MCQCh. 12 - Which of the following modes of action would be...Ch. 12 - Prob. 9MCQCh. 12 - Prob. 10MCQCh. 12 - Prob. 11TFCh. 12 - Prob. 12TFCh. 12 - Biofilms are difficult to treat and do not always...Ch. 12 - Prob. 14TFCh. 12 - Prob. 15TFCh. 12 - Construct a paragraph describing the...Ch. 12 - Prob. 2CTQCh. 12 - Antibiotic-resistance genes, as well as other...Ch. 12 - Prob. 4CTQCh. 12 - What is the significance of the bottom row in...Ch. 12 - Figure 12.5. Where could penicillinase affect each...Ch. 12 - From chapter 6, process figure 6.14a. Describe as...Ch. 12 - Prob. 1CM
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