Microbiology with Diseases by Taxonomy (5th Edition)
5th Edition
ISBN: 9780134019192
Author: Robert W. Bauman Ph.D.
Publisher: PEARSON
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Chapter 5, Problem 18CT
Summary Introduction
To determine:
The amount of molecules that would be produced if the Entner- Doudoroff pathway were used instead of the Embden- Meyerhof glycolysis.
Introduction:
The Entner-Doudoroff pathway includes the enzymes which catalyze the reactions in the same pathway. It yields ATP, NADP, and NADH. The Embden-Meyerhof glycolysis pathway yields only ATP and NADP molecules.
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Students have asked these similar questions
The reaction catalyzed by citrate syn-
thase, shown on the right, is the first step of the TCA
cycle. In glycolysis, two key reactions to produce ATP
occur because an unfavorable reaction is coupled to
another reaction that is thermodynamically favorable.
The reaction catalyzed by citrate synthase, shown on
the right, is similarly coupled to an unfavorable reac-
tion in the TCA cycle. Write the unfavorable reaction
using structural formulas and write the key step that
drives the two coupled reactions forward. What is the
overall AG'o of the coupled reactions?
CH3-C
>=0
+
S-COA
Acetyl-CoA
0-C-COO-
CH₂-COO
Oxaloacetate
H₂O COA-SH
J
citrate
synthase
CH₂-C
HỌ—C—COO
SO
CH₂-COO
Citrate
AG'= -32.2 kJ/mol
All the dehydrogenases of glycolysis and the citric acid cycle use NAD+ (E°' for NAD+/NADH is -0.32 V) as the electron acceptor, except succinate dehydrogenase, which uses covalently bound FAD (E°' for FAD/FADH2 is +0.050 V). Suggest why FAD is a more appropriate electron acceptor than NAD+ in the dehydrogenation of succinate, based on the E°' values of fumarate/succinate (E°' = +0.031 V)
All the dehydrogenases of glycolysis and the citric acid cycle use NAD+ (?′°E′° for NAD+/NADH is −0.32 V−0.32 V) as electron acceptor except succinate dehydrogenase, which uses covalently‑bound FAD (?′°E′° for FAD/FADH2 in this enzyme is 0.050 V).0.050 V). The ?′°E′° value for fumarate/succinate is 0.031 V.0.031 V.
a)Calculate the Δ?′°ΔG′° value for the oxidation of succinate using NAD+.
b)Calculate the Δ?′°ΔG′° value for the oxidation of succinate using covalently‑bound FAD.
Chapter 5 Solutions
Microbiology with Diseases by Taxonomy (5th Edition)
Ch. 5 - Prob. 1MCCh. 5 - Prob. 2MCCh. 5 - Prob. 3MCCh. 5 - Prob. 4MCCh. 5 - Prob. 5MCCh. 5 - Prob. 6MCCh. 5 - Prob. 7MCCh. 5 - Prob. 8MCCh. 5 - Prob. 9MCCh. 5 - Prob. 10MC
Ch. 5 - Prob. 11MCCh. 5 - Prob. 12MCCh. 5 - Prob. 13MCCh. 5 - Prob. 14MCCh. 5 - Prob. 15MCCh. 5 - Prob. 16MCCh. 5 - Prob. 17MCCh. 5 - Prob. 18MCCh. 5 - Prob. 19MCCh. 5 - Prob. 20MCCh. 5 - Prob. 1MCh. 5 - Prob. 1FIBCh. 5 - Prob. 2FIBCh. 5 - Prob. 3FIBCh. 5 - Prob. 4FIBCh. 5 - Prob. 5FIBCh. 5 - Prob. 6FIBCh. 5 - Prob. 7FIBCh. 5 - Prob. 8FIBCh. 5 - Prob. 9FIBCh. 5 - Prob. 10FIBCh. 5 - Label the mitochondrion to indicate the location...Ch. 5 - Label the diagram below to indicate acetyl-CoA,...Ch. 5 - Examine the biosynthetic pathway for the...Ch. 5 - Prob. 1SACh. 5 - Prob. 2SACh. 5 - Prob. 3SACh. 5 - Prob. 4SACh. 5 - Prob. 5SACh. 5 - Prob. 6SACh. 5 - Prob. 7SACh. 5 - Prob. 8SACh. 5 - Prob. 9SACh. 5 - Prob. 10SACh. 5 - Prob. 11SACh. 5 - Prob. 12SACh. 5 - Prob. 13SACh. 5 - Prob. 14SACh. 5 - A laboratory scientist notices that a cer1ain...Ch. 5 - Arsenic is a poison that exists in two states in...Ch. 5 - Explain why an excess of all three of the amino...Ch. 5 - Prob. 3CTCh. 5 - Describe how bacterial fermentation causes milk to...Ch. 5 - Giardia intestinalis and Entamoeba histolytica are...Ch. 5 - Prob. 6CTCh. 5 - Prob. 7CTCh. 5 - Prob. 8CTCh. 5 - Cyanide is a potent poison because it irreversibly...Ch. 5 - How are photophosphorylation and oxidative...Ch. 5 - Prob. 11CTCh. 5 - Compare and contrast aerobic respiration,...Ch. 5 - Scientists estimate that up to one-third of Earths...Ch. 5 - Prob. 14CTCh. 5 - Prob. 15CTCh. 5 - Some desert rodents rarely have water to drink....Ch. 5 - Prob. 17CTCh. 5 - Prob. 18CTCh. 5 - Explain why hyperthermophiles do not cause disease...Ch. 5 - In addition to extremes in temperature and pH,...Ch. 5 - Prob. 21CTCh. 5 - Prob. 22CTCh. 5 - Prob. 23CTCh. 5 - Prob. 24CTCh. 5 - Prob. 25CTCh. 5 - A scientist moves a green plant grown in sunlight...Ch. 5 - What class of enzyme is involved in amination...Ch. 5 - Prob. 1CMCh. 5 - How can oxidation take place in an anaerobic...Ch. 5 - Prob. 2TMWCh. 5 - Prob. 3TMWCh. 5 - Prob. 4TMWCh. 5 - Prob. 5TMWCh. 5 - Prob. 6TMW
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