Biochemistry: The Molecular Basis of Life
6th Edition
ISBN: 9780190209896
Author: Trudy McKee, James R. McKee
Publisher: Oxford University Press
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Chapter 3, Problem 41FB
Summary Introduction
To review:
The given blank in the statement“A buffer is composed of a weak acid and its _____base.”
Introduction:
A buffer is used to regulatepH. It maintainsa constant pH in a solution or in the body. In an aqueous solution, the buffer consists of a weak base and a conjugate acid and vice versa. For exampl, en maintaining the pH of the blood, the bicarbonate buffer system plays an important role.
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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
ا کچھ جو کچھ
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
Ν ΚΑ
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 3 Solutions
Biochemistry: The Molecular Basis of Life
Ch. 3 - Prob. 1QCh. 3 - Prob. 2QCh. 3 - Prob. 3QCh. 3 - Prob. 4QCh. 3 - Prob. 1RQCh. 3 - Prob. 2RQCh. 3 - Prob. 3RQCh. 3 - Prob. 4RQCh. 3 - Prob. 5RQCh. 3 - Prob. 6RQ
Ch. 3 - Prob. 7RQCh. 3 - Prob. 8RQCh. 3 - Prob. 9RQCh. 3 - Prob. 10RQCh. 3 - Prob. 11RQCh. 3 - Prob. 12RQCh. 3 - Prob. 13RQCh. 3 - Prob. 14RQCh. 3 - Prob. 15RQCh. 3 - Prob. 16RQCh. 3 - Prob. 17RQCh. 3 - Prob. 18RQCh. 3 - Prob. 19RQCh. 3 - Prob. 20RQCh. 3 - Prob. 21RQCh. 3 - Prob. 22RQCh. 3 - Prob. 23RQCh. 3 - Prob. 24RQCh. 3 - Prob. 25RQCh. 3 - Prob. 26RQCh. 3 - Prob. 27RQCh. 3 - Prob. 28RQCh. 3 - Prob. 29RQCh. 3 - Prob. 30RQCh. 3 - Prob. 31RQCh. 3 - Prob. 32RQCh. 3 - Prob. 33RQCh. 3 - Prob. 34RQCh. 3 - Prob. 35RQCh. 3 - Prob. 36FBCh. 3 - Prob. 37FBCh. 3 - Prob. 38FBCh. 3 - Prob. 39FBCh. 3 - Prob. 40FBCh. 3 - Prob. 41FBCh. 3 - Prob. 42FBCh. 3 - Prob. 43FBCh. 3 - Prob. 44FBCh. 3 - Prob. 45FBCh. 3 - Prob. 46SACh. 3 - Prob. 47SACh. 3 - Prob. 48SACh. 3 - Prob. 49SACh. 3 - Prob. 50SACh. 3 - Prob. 51TQCh. 3 - Prob. 52TQCh. 3 - Prob. 53TQCh. 3 - Prob. 54TQCh. 3 - Prob. 55TQCh. 3 - Prob. 56TQCh. 3 - Prob. 57TQCh. 3 - Prob. 58TQCh. 3 - Prob. 59TQCh. 3 - Prob. 60TQCh. 3 - Prob. 61TQCh. 3 - Prob. 62TQCh. 3 - Prob. 63TQCh. 3 - Prob. 64TQCh. 3 - Prob. 65TQCh. 3 - Prob. 66TQCh. 3 - Prob. 67TQCh. 3 - Prob. 68TQCh. 3 - Prob. 69TQCh. 3 - Prob. 70TQCh. 3 - Prob. 71TQCh. 3 - Prob. 72TQCh. 3 - Prob. 73TQCh. 3 - Prob. 74TQCh. 3 - Prob. 75TQCh. 3 - Prob. 76TQ
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