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 15, Problem 10RQ
Summary Introduction
To review:
The different ways of maintaining anaerobic conditions for nitrogenase by microbes.
Introduction:
Nitrogen is necessary for life because it is one of the important constituents of proteins and amino acids. Nitrogen fixation is the process in which conversion of nitrogen (N2) to ammonia (NH4+) takes place. It requires high energy as nitrogen is highly stable. This process is carried out by the enzyme known as nitrogenase.
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Microbiology: An Evolving Science (Fourth Edition)
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- explain why there is little to no growth of these organisms in the minimal salt media with glucose compared to the complex media. (HINT: these organisms are chemoheterotrophs and need an organic source of broth carbon and energy)...arrow_forwardNitrogen fixing organisms have unique problems in terms of energy production and the need for low O2 tension to protect nitrogenase. Describe in detail how Azotobacter and Rhizobium species solve these problems. Thank youarrow_forward. Describe in basic terms the process of biological nitrogen fixation,why it is important, and how oxygen interferes with this process.arrow_forward
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