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 16.4, Problem 1TQ
Summary Introduction
To review:
Comparison of the role of fermenting organisms in the production of cheese and bread.
Introduction:
Fermentation organisms are anaerobic that grow in the absence of oxygen. The electron acceptor of organic molecules is used to produce a fermented desired product, for example, lactobacillus produces lactice acid and Escherichia coli produces ethanol and carbon dioxide. Aerobic organisms are the ones that grow in the presence of oxygen and result in the production of energy through
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If you suspect that your microbial culture growing in nutrient broth is contaminated, what can you do to confirm this?
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Chapter 16 Solutions
Microbiology: An Evolving Science (Fourth Edition)
Ch. 16.1 - Prob. 1RQCh. 16.1 - Prob. 2RQCh. 16.1 - Prob. 3RQCh. 16.1 - Prob. 4RQCh. 16.1 - Prob. 5RQCh. 16.1 - Prob. 6RQCh. 16.1 - Prob. 7RQCh. 16.1 - Prob. 8RQCh. 16.1 - Prob. 9RQCh. 16.1 - Prob. 10RQ
Ch. 16.1 - Prob. 11RQCh. 16.1 - Prob. 12RQCh. 16.1 - Prob. 13RQCh. 16.1 - Prob. 14RQCh. 16.1 - Prob. 1TQCh. 16.1 - Prob. 2TQCh. 16.1 - Prob. 3TQCh. 16.2 - Prob. 1TQCh. 16.2 - Prob. 2TQCh. 16.3 - Prob. 1TQCh. 16.3 - Prob. 2TQCh. 16.3 - Prob. 3TQCh. 16.4 - Prob. 1TQCh. 16.4 - Prob. 2TQCh. 16.5 - Prob. 1TQCh. 16.5 - Prob. 2TQCh. 16.6 - Prob. 1TQCh. 16.6 - Prob. 2TQ
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“clean” means
reducing the level of harmful microbes to a safe level on food contact surfaces
using chlorine solution on food contact surfaces
removing visible dirt from food contact surfaces
using iodine solution on food contact surfaces
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_____ kills pathogens and some spoilage organisms but does not sterilize substances.
_____ kills pathogens and some spoilage organisms but does not sterilize substances.
Tyndallization
Autoclaving
Pasteurization
Boiling
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It is a Multiple choice question. An image is attached
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All of the following are routinely used to preserve foods excepta) high concentrations of sugar.b) high concentrations of salt.c) benzoic acid.d) freezing.e) ethylene oxide.
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Need help
Can a pure culture be prepared from a mixed culture in a broth or plate? Explain.
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Based off Pasteur’s sterility experiment, which of the following choices is least likely to result in microbial growth?
Nutrient broth placed in flask, heated, swan neck removed
Nutrient broth placed in flask, not heated, swan neck not removed
Nutrient broth placed in flask, not heated, swan neck removed
Nutrient broth placed in flask, heated, swan neck not removed
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