BIOCHEMISTRY BOOKS ALC&MOD MST/ET PKG
1st Edition
ISBN: 9780134172507
Author: APPLING
Publisher: Pearson Education
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Chapter 13, Problem 11P
Interpretation Introduction
Interpretation:
The mechanism for the oxidation reaction that takes place in the conversion of dihydrolipoamide to lipoamide by the E3 subunit of pyruvate dehydrogenase complex should be drawn.
Concept introduction:
The pyruvate dehydrogenase complex consists of three complexes namely E1, E2, and E3. Pyruvate dehydrogenases are exclusively found in mitochondria. The formation of acetyl CoA in mitochondria results in the generation of dihydrolipoamide (a reduced form of lipoamide).
Pictorial Representation:
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Students have asked these similar questions
12. When glutamic acid is heated to 180°C., it loses a molecule of water to form a
lactam. The bond that creates the lactam is an amide bond that forms between the
amino nitrogen and the carbon of the side chain -COOH group. What is the most
reasonable structure for this lactam? (NOTE: The structure of glutamic acid is shown
in Question 1.)
COOH
COOH
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C
D
COOH
B
COOH
E
COOH
10. Which one of the
following compounds is
the major organic product
of the series of reactions
shown here?
Ph
A
OH
Ph
B
CO₂Et
Br
-H
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CO₂Et
1. NaOEt
1. NaOH, H₂O
2. H3O+
2. PhCH2CH2Br
3. heat
NH2
Ph
OH
NH2
0
OH
Ph
OH
NH2
Ph
D
NH2
E
OH
1. What is the isoelectric point of glutamic acid?
(Glutamic acid has pKa1 2.10, pKa2 4.07, pKaз 9.47)
A) pH 2.1
D) pH 6.8
B) pH 3.1
C) pH 4.1
E) pH 9.5
HO
NH2
Glutamic acid
(shown without charges)
OH
Chapter 13 Solutions
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