Biochemistry
6th Edition
ISBN: 9781305577206
Author: Reginald H. Garrett, Charles M. Grisham
Publisher: Cengage Learning
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Chapter 21, Problem 13P
Interpretation Introduction
To propose:
The reaction for the conversion to glycerate 3 p from phosphoglycolate by the photorespiration reaction.
Introduction:
The pathway of photorespiration is not coupled with the transferred electrons and it do not generate ATP and do not use oxygen. It uses the primary fuel of sugar phosphate and also produces carbon di oxide.
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The high phosphoryl transfer potential of 1,3-bisphosphoglycerate is explained by the resonance stability of the product, 3-phosphoglycerate. The same explanation applies to the reaction that generates resonance stabilized pyruvate from phosphoenolpyruvate. Show the resonance structures for both products, 3-phosphoglycerate and pyruvate, and state why the reactant in both reactions is not resonance stabilized.
If you were to determine the P/O ratio for oxidation of a-ketoglutarate, you would probably include some malonate in your reaction system. Why? Under these conditions, what P/O ratio would you expect to observe?
If you were to determine the P/O ratio for oxidation of α-ketoglutarate,you would probably include some malonate in your reaction system. Why?Under these conditions, what P/O ratio would you expect to observe?
Chapter 21 Solutions
Biochemistry
Ch. 21 - P700* Has the Most Negative Standard Reduction...Ch. 21 - Prob. 2PCh. 21 - Prob. 3PCh. 21 - Prob. 4PCh. 21 - The Relative Efficiency of ATP Synthesis in...Ch. 21 - pH and in the Chloroplast Proton-Motive Force...Ch. 21 - Prob. 7PCh. 21 - Prob. 8PCh. 21 - Prob. 9PCh. 21 - Prob. 10P
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