Biochemistry: The Molecular Basis of Life
6th Edition
ISBN: 9780190209896
Author: Trudy McKee, James R. McKee
Publisher: Oxford University Press
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Chapter 15, Problem 42RQ
Summary Introduction
To review:
The reason that humans cannot excrete waste nitrogen atoms as ammonia, rather utilize the energetically expensive process of urea synthesis.
Introduction:
Urea synthesisis the process of producing urea by certain biochemical reactions. It is also known as the ornithine cycle. It was discovered by HansKrebs and KurtHenseleit. Thus, it is also known as KrebsHenseleit cycle or Krebs urea cycle. It involves the conversion of highly toxic ammonia into urea, which is later excreted from the body.
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Given the values for the changes in enthalpy (AH) and entropy (AS), which processes can take place at 298 K without
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ionic interactions
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180
120
60
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p=-59 degrees; = +150 degrees; many Ser residues
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op-57 degrees; w = -47 degrees; many Pro residues
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Chapter 15 Solutions
Biochemistry: The Molecular Basis of Life
Ch. 15 - Prob. 1QCh. 15 - Prob. 2QCh. 15 - Prob. 5QCh. 15 - Prob. 6QCh. 15 - Prob. 7QCh. 15 - Prob. 1RQCh. 15 - Prob. 2RQCh. 15 - Prob. 3RQCh. 15 - Prob. 4RQCh. 15 - Prob. 5RQ
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