Biochemistry: Concepts and Connections
1st Edition
ISBN: 9780321839923
Author: Dean R. Appling, Spencer J. Anthony-Cahill, Christopher K. Mathews
Publisher: PEARSON
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Textbook Question
Chapter 14, Problem 3P
Freshly prepared mitochondria were incubated with ß-hydroxybutyrate, oxidized cytochrome c, ADP, Pi, and cyanide. ß-hydroxybutyrate is oxidized by an NAD+ -dependent dehydrogenase.
- The experimenter measured the rate of oxidation of ß-hydroxybutyrate and the rate of formation of ATP.
- Indicate the probable flow of electrons in this system.
- How many moles of ATP would you expect to be formed per mole of ß-hydroxybutyrate oxidized in this system?
- Why is ß-hydroxybutyrate added rather than NADH?
- What is the function of the cyanide?
- Write a balanced equation for the overall reaction occurring in this system (electron transport and ATP synthesis).
- Calculate the net standard free energy change (ΔGO') in this system, using
E'o values from Table 14.1 and a ΔGO' value for ATP hydrolysis of -32.2 kJ / mol.
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Chapter 14 Solutions
Biochemistry: Concepts and Connections
Ch. 14 - Prob. 1PCh. 14 - When pure reduced cytochrome c is added to...Ch. 14 - Freshly prepared mitochondria were incubated with...Ch. 14 - Prob. 4PCh. 14 - Prob. 5PCh. 14 - Intramitochondrial ATP concentrations are about 5...Ch. 14 - Prob. 7PCh. 14 - Prob. 8PCh. 14 - Years ago there was interest in using uncouplers...Ch. 14 - Prob. 10P
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