Microbiology: An Evolving Science (Fourth Edition)
4th Edition
ISBN: 9780393615098
Author: John W. Foster, Joan L. Slonczewski
Publisher: W. W. Norton & Company
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Chapter 17.5, Problem 1TQ
Summary Introduction
To review:
The identification of Gram-negative bacteria which is 1µm (micrometer) wide, straight, motile, does not have sheath, and contains sulfur granules.
Introduction:
The nomenclature and classification of organism is based on their genetic relatedness. In addition, several other characteristics like
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Chapter 17 Solutions
Microbiology: An Evolving Science (Fourth Edition)
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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? There is no way to know given the information provided Both infections are equally likely Donoteatum thisbacterium Parasiticum mucoidesarrow_forwardIn Figure 5-3, if the concentration of bacterial cells inthe original suspension is 200/ml and 0.2 ml is platedonto each of 100 petri dishes, what is the expected average number of colonies per plate?arrow_forwardA 2x10-6 dilution of your bacterial culture yielded 10 colonies. What was the cell density (incells/ml) of your bacterial culture?arrow_forward
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