MASTERING ORGANIC CHEMISTRY W/ETEXT >I
14th Edition
ISBN: 9781269926454
Author: Pearson
Publisher: PEARSON C
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Chapter 25, Problem 63P
UDP-galactose-4-epimerase converts UDP-galactose to UDP-glucose. The reaction requires NAD+ as a coenzyme.
a. Propose a mechanism for the reaction.
b. Why is the enzyme called an epimerase?
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UDP-galactose-4-epimerase converts UDP-galactose to UDP-glucose. The reaction requires NAD+ as a coenzyme. a. Propose a mechanism for the reaction. b. Why is the enzyme called an epimerase?
1. Carbohydrates classification.
2. Write down the reactions:
a) α,D-Glucopyranose + C2H5OH →
b) D-Glucose + [Ag(NH3)2]+ →
c) D-Glucopyranose + (CH3CO)2 O →
d) D-Glucopyranose + CH3I →
e) D-Glucose + HNO3 →
f) D-Glucose + H2 →
g) Lactose formation
h) Sucrose hydrolysis
3. Write down the formula of β,D-galactopyranose
Reaction a) maltose (s) + H2O (l) -----> 2 glucose (s)
Reaction b) 6 CO2 (g) + 6 H2O (l) -------> glucose (s) + 6 O2 (g)
How would you manipulate reactions a) and b) to ended up with the reaction c) ?
Reaction c) maltose (s) + 12 O2 (g) -------> 12 CO2 (g) + 11 H2O (l)
Step by step :
What needs to be done to the reaction a) ?
What needs to be done to the reaction b)?
Add new reactions a) and b) together to prove that you ended up with the reaction c)
Chapter 25 Solutions
MASTERING ORGANIC CHEMISTRY W/ETEXT >I
Ch. 25.6 - Prob. 2PCh. 25.6 - Prob. 3PCh. 25.6 - Why does the OH group add to the -carbon rather...Ch. 25.6 - Prob. 5PCh. 25.6 - How many molecules of NADH are formed from the...Ch. 25.7 - Prob. 7PCh. 25.7 - Prob. 8PCh. 25.7 - The oxidation of glyceraldehyde-3-phosphate to...Ch. 25.7 - Prob. 10PCh. 25.8 - Prob. 11P
Ch. 25.8 - Prob. 12PCh. 25.8 - Prob. 13PCh. 25.8 - Propose a mechanism for the reduction of...Ch. 25.9 - Prob. 15PCh. 25.9 - Prob. 16PCh. 25.10 - Acid-catalyzed dehydration reactions are normally...Ch. 25.10 - Prob. 18PCh. 25.10 - Prob. 19PCh. 25.10 - Acid-catalyzed dehydration reactions are normally...Ch. 25.10 - Prob. 21PCh. 25.10 - Prob. 22PCh. 25.11 - Prob. 23PCh. 25.12 - a. What is the name of the enzyme that converts...Ch. 25.15 - Prob. 25PCh. 25.16 - Prob. 26PCh. 25.16 - Prob. 27PCh. 25.17 - Propose mechanisms for the Claisen condensation...Ch. 25.17 - Prob. 29PCh. 25.17 - Propose a mechanism for the conversion of...Ch. 25.17 - Propose a mechanism for the biosynthesis of...Ch. 25.17 - Propose a mechanism for the conversion of the E...Ch. 25.17 - The fluoro-substitued geranyl pyrophosphate shown...Ch. 25.17 - Prob. 35PCh. 25.18 - Draw the individual 1,2-hydride and 1,2-methyl...Ch. 25 - Prob. 38PCh. 25 - Prob. 39PCh. 25 - Prob. 40PCh. 25 - Prob. 41PCh. 25 - Prob. 42PCh. 25 - Prob. 43PCh. 25 - Prob. 44PCh. 25 - Prob. 45PCh. 25 - Prob. 46PCh. 25 - Prob. 47PCh. 25 - Prob. 48PCh. 25 - Prob. 49PCh. 25 - Prob. 50PCh. 25 - Prob. 51PCh. 25 - Prob. 52PCh. 25 - Prob. 53PCh. 25 - Prob. 54PCh. 25 - Prob. 55PCh. 25 - Prob. 56PCh. 25 - Prob. 57PCh. 25 - Prob. 58PCh. 25 - Prob. 59PCh. 25 - Prob. 60PCh. 25 - Prob. 61PCh. 25 - Prob. 62PCh. 25 - UDP-galactose-4-epimerase converts UDP-galactose...Ch. 25 - A student is trying to determine the mechanism for...Ch. 25 - What would be the results of the experiment in...Ch. 25 - Prob. 66PCh. 25 - Propose a mechanism for the biosynthesis of...Ch. 25 - Eudesmol is a sesquiterpene found in eucalyptus....
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