Biochemistry, The Molecular Basis of Life, 6th Edition
6th Edition
ISBN: 9780190259204
Author: Trudy McKee, James R. McKee
Publisher: Oxford University Press
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Chapter 5, Problem 33FB
Summary Introduction
To review:
The given blank space in the statement, “Molecules that can behave as an acid or a base are called_____________”
Introduction:
The molecule or ion that can lose a proton (hydrogen ion, H+) is an acid. Acids turn blue litmus to red. Bases, on the other hand, are those substances which when dissolved in water, release hydroxide ions. They change the color of red litmus to blue.
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draw in the structure of each amino acid (as L-amino acids) using the Fischer projection style. an example has been included
Draw out the following peptide H-R-K-E-D at physiological pH (~7.4). Make sure toreference table 3.1 for pKa values.
The table provides the standard reduction potential, E', for relevant half-cell reactions.
Half-reaction
E'° (V)
Oxaloacetate² + 2H+ + 2e malate²-
-0.166
Pyruvate + 2H+ + 2e → lactate
-0.185
Acetaldehyde + 2H+ + 2e¯ →→→ ethanol
-0.197
NAD+ + H+ + 2e--> NADH
-0.320
NADP+ + H+ + 2e →→ NADPH
Acetoacetate + 2H+ + 2e¯
-
-0.324
B-hydroxybutyrate
-0.346
Which of the reactions listed would proceed in the direction shown, under standard conditions, in the presence of the
appropriate enzymes?
Malate + NAD+ oxaloacetate + NADH + H+
Malate + pyruvate oxaloacetate + lactate
Pyruvate + NADH + H+ lactate + NAD+
Pyruvate + p-hydroxybutyrate lactate + acetoacetate
Acetaldehyde + succinate ethanol + fumerate
Acetoacetate + NADH + H+ → B-hydroxybutyrate + NAD+
Chapter 5 Solutions
Biochemistry, The Molecular Basis of Life, 6th Edition
Ch. 5 - Prob. 1QCh. 5 - Prob. 2QCh. 5 - Prob. 3QCh. 5 - Prob. 4QCh. 5 - Prob. 5QCh. 5 - Prob. 6QCh. 5 - Prob. 7QCh. 5 - Prob. 8QCh. 5 - Prob. 9QCh. 5 - Prob. 10Q
Ch. 5 - Prob. 11QCh. 5 - Prob. 12QCh. 5 - Prob. 1RQCh. 5 - Prob. 2RQCh. 5 - Prob. 3RQCh. 5 - Prob. 4RQCh. 5 - Prob. 5RQCh. 5 - Prob. 6RQCh. 5 - Prob. 7RQCh. 5 - Prob. 8RQCh. 5 - Prob. 9RQCh. 5 - Prob. 10RQCh. 5 - Prob. 11RQCh. 5 - Prob. 12RQCh. 5 - Prob. 13RQCh. 5 - Prob. 14RQCh. 5 - Prob. 15RQCh. 5 - Prob. 16RQCh. 5 - Prob. 17RQCh. 5 - Prob. 18RQCh. 5 - Prob. 19RQCh. 5 - Prob. 20RQCh. 5 - Prob. 21RQCh. 5 - Prob. 22RQCh. 5 - Prob. 23RQCh. 5 - Prob. 24RQCh. 5 - Prob. 25RQCh. 5 - Prob. 26RQCh. 5 - Prob. 27RQCh. 5 - Prob. 28RQCh. 5 - Prob. 29RQCh. 5 - Prob. 30RQCh. 5 - Prob. 31RQCh. 5 - Prob. 32FBCh. 5 - Prob. 33FBCh. 5 - Prob. 34FBCh. 5 - Prob. 35FBCh. 5 - Prob. 36FBCh. 5 - Prob. 37FBCh. 5 - Prob. 38FBCh. 5 - Prob. 39FBCh. 5 - Prob. 40FBCh. 5 - Prob. 41FBCh. 5 - Prob. 42SACh. 5 - Prob. 43SACh. 5 - Prob. 44SACh. 5 - Prob. 45SACh. 5 - Prob. 46SACh. 5 - Prob. 47TQCh. 5 - Prob. 48TQCh. 5 - Prob. 49TQCh. 5 - Prob. 50TQCh. 5 - Prob. 51TQCh. 5 - Prob. 52TQCh. 5 - Prob. 53TQCh. 5 - Prob. 54TQCh. 5 - Prob. 55TQCh. 5 - Prob. 56TQCh. 5 - Prob. 57TQCh. 5 - Prob. 58TQCh. 5 - Prob. 59TQCh. 5 - Prob. 60TQCh. 5 - Prob. 61TQCh. 5 - Prob. 62TQCh. 5 - Prob. 63TQCh. 5 - Prob. 64TQCh. 5 - Prob. 65TQCh. 5 - Prob. 66TQCh. 5 - Prob. 67TQCh. 5 - Prob. 68TQCh. 5 - Prob. 69TQCh. 5 - Prob. 70TQ
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