Introduction to General, Organic and Biochemistry
11th Edition
ISBN: 9781285869759
Author: Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Publisher: Cengage Learning
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Chapter 20, Problem 20.82P
Interpretation Introduction
Interpretation:
The transformation of dihydroxyacetone phosphate to D-glyceraldehyde
Concept Introduction:
The process of breakdown of glucose to form pyruvate along with the production of
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One pathway for the metabolism of D-glucose 6-phosphate is its enzyme-catalyzed
conversion to D-fructose 6-phosphate. Show that this transformation can be accom-
plished as two enzyme-catalyzed keto-enol tautomerisms.
СНО
CH,OH
C=0
enzyme
catalysis
Но
Но
H
OH
H
H.
O-
H-
-HO-
ČH,OPO,
ČH,OPO,
D-Glucose 6-phosphate
D-Fructose 6-phosphate
4. Glycolysis is a metabolic pathway that converts glucose into pyruvate while synthesizing
high-energy molecules. During one step of Glycolysis, glucose-6-phosphate (an aldose) is
converted to fructose-6-phosphate (a ketose) via an ene-diol intermediate.
OH OH O
OP OH OH
ОН
ОН
glucose-6-phosphate
OH OH OH
OP OH
fructose-6-phosphate
Draw arrow pushing mechanism to describe this isomerization. Use B: and HA as surrogates
for basic/acidic amino acid residues.
The hydrolysis of pyrophosphate to orthophosphate drives biosynthetic reactions such as DNA synthesis. In Escherichia coli,
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subunits. A unit of activity for this enzyme, U, is the amount of enzyme that hydrolyzes 10 umol of pyrophosphate in
15 minutes. The purified enzyme has a Vnax of 2800 U per milligram of enzyme.
When (S] >> KM, how many micromoles of substrate can 1 mg of enzyme hydrolyze per second?
Vnax =
umol -s. mg-
If cach enzyme subunit has one active site, how many micromoles of active sites, or (E]r, are there in 1 mg of enzyme?
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Chapter 20 Solutions
Introduction to General, Organic and Biochemistry
Ch. 20.1 - Prob. 20.1PCh. 20.2 - Prob. 20.2PCh. 20.2 - Prob. 20.3PCh. 20.3 - Prob. 20.4PCh. 20.4 - Prob. 20.5PCh. 20 - Prob. 20.6PCh. 20 - Prob. 20.7PCh. 20 - Prob. 20.8PCh. 20 - Prob. 20.9PCh. 20 - Prob. 20.10P
Ch. 20 - Prob. 20.11PCh. 20 - Prob. 20.12PCh. 20 - Prob. 20.13PCh. 20 - Prob. 20.14PCh. 20 - Prob. 20.15PCh. 20 - Prob. 20.16PCh. 20 - Prob. 20.17PCh. 20 - Prob. 20.18PCh. 20 - .19 What is an amino sugar? Name the three amino...Ch. 20 - Prob. 20.20PCh. 20 - Prob. 20.21PCh. 20 - Prob. 20.22PCh. 20 - Prob. 20.23PCh. 20 - Prob. 20.24PCh. 20 - Prob. 20.25PCh. 20 - Prob. 20.26PCh. 20 - Prob. 20.27PCh. 20 - Prob. 20.28PCh. 20 - Prob. 20.29PCh. 20 - Prob. 20.30PCh. 20 - Prob. 20.31PCh. 20 - Prob. 20.32PCh. 20 - Prob. 20.33PCh. 20 - Prob. 20.34PCh. 20 - Prob. 20.35PCh. 20 - Prob. 20.36PCh. 20 - Prob. 20.37PCh. 20 - Prob. 20.38PCh. 20 - Prob. 20.39PCh. 20 - Prob. 20.40PCh. 20 - Prob. 20.41PCh. 20 - Prob. 20.42PCh. 20 - Prob. 20.43PCh. 20 - Prob. 20.44PCh. 20 - Prob. 20.45PCh. 20 - 6 Where is glycogen stored in the human body?Ch. 20 - Prob. 20.47PCh. 20 - 8 How is it possible that cows can digest grass...Ch. 20 - Prob. 20.49PCh. 20 - Prob. 20.50PCh. 20 - 1 Hyaluronic acid acts as a lubricant in the...Ch. 20 - 2 The anticlotting property of heparin is partly...Ch. 20 - Prob. 20.53PCh. 20 - Prob. 20.54PCh. 20 - Prob. 20.55PCh. 20 - Prob. 20.56PCh. 20 - Prob. 20.57PCh. 20 - Prob. 20.58PCh. 20 - Prob. 20.59PCh. 20 - Prob. 20.60PCh. 20 - Prob. 20.61PCh. 20 - 2 In making candy or sugar syrups, sucrose is...Ch. 20 - Prob. 20.63PCh. 20 - Prob. 20.64PCh. 20 - Prob. 20.65PCh. 20 - Prob. 20.66PCh. 20 - Prob. 20.67PCh. 20 - Prob. 20.68PCh. 20 - Prob. 20.69PCh. 20 - 0 What are the structural differences between...Ch. 20 - Prob. 20.71PCh. 20 - Prob. 20.72PCh. 20 - Prob. 20.73PCh. 20 - Prob. 20.74PCh. 20 - Prob. 20.75PCh. 20 - Prob. 20.76PCh. 20 - Prob. 20.77PCh. 20 - Prob. 20.78PCh. 20 - Prob. 20.79PCh. 20 - Prob. 20.80PCh. 20 - Prob. 20.81PCh. 20 - Prob. 20.82PCh. 20 - Prob. 20.83PCh. 20 - Prob. 20.84PCh. 20 - Prob. 20.85PCh. 20 - Prob. 20.86PCh. 20 - Prob. 20.87PCh. 20 - Prob. 20.88PCh. 20 - Prob. 20.89P
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