Biochemistry
Biochemistry
8th Edition
ISBN: 9781464126109
Author: Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr., Lubert Stryer
Publisher: W. H. Freeman
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Chapter 24, Problem 1P
Interpretation Introduction

Interpretation:

The definition of nitrogen fixation and organisms capable of doing it should be determined.

Concept introduction:

Atmospheric nitrogen is unreactive and metabolically useless, so to make it useful, microorganisms convert it into useful nitrogenous compounds. Nitrogen fixation occurs between the termite and fungi.

Expert Solution & Answer
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Answer to Problem 1P

Nitrogen fixation is the conversion of molecular nitrogen into ammonia. Non-symbiotic bacteria in soil and symbiotic bacteria in roots of the plants can do this job.

Explanation of Solution

Nitrogen fixation is the process by which elemental nitrogen is converted into the ammonia, which is usable by the living organisms. Ammonia is widely used in living beings during the synthesis of DNA and proteins. It is carried out by the nitrogenase enzyme complex.

The process of nitrogen fixation is carried out by two types of bacteria, non-symbiotic bacteria which are found in soil, and symbiotic bacteria, which are found attached to the roots of the plants.

Conclusion

Nitrogen fixation is the conversion of molecular nitrogen into ammonia. Non-symbiotic bacteria in soil and symbiotic bacteria in roots of the plants can do this job.

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