Fundamentals of General, Organic, and Biological Chemistry, Books a la Carte Edition; Modified Mastering Chemistry with Pearson eText -- ValuePack ... and Biological Chemistry (4th Edition)
4th Edition
ISBN: 9780134465715
Author: John E. McMurry, David S. Ballantine
Publisher: PEARSON
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Chapter 19, Problem 19.84CP
Interpretation Introduction
Interpretation:
The definition for activation energy and its importance should be determined.
Concept introduction:
Activation energy: The energy absorbed by the reactants to break the bond and activation energy can be lowered by enzyme which acts as a catalyst.
The
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The preferred substrate is T because the enzyme half-saturates at 7.00 mM for T, but requires 28.0 mM for U, and 112 mM for S.
b
Question Content Area
The rate constant k 2 with substrate S is 9.60×107 sec-1, with substrate T, k 2 = 6.00×104 sec-1, and with substrate U, k 2 = 2.40×106 sec-1.
Calculate the catalytic efficiency with S, T, and U.
Catalytic efficiency with S =
Catalytic efficiency with T =
Catalytic efficiency with U =
Does enzyme A use substrate S, substrate T, or substrate U with greater catalytic efficiency?
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The turnover number, kcat, for fumerase is 8.00×102 sec-1. The Km of this enzyme for fumerate is 5.00×10-3 μmol mL-1.
a
In an experiment using 2.00×10-3 μmol·mL-1, what is Vmax?
Suppose you wanted to make a buffer of exactly pH 7.00 using KH2PO4 and Na2HPO4. If the final solution was 0.18 M in KH2PO4, you would need 0.25 M Na2HPO4. Now assume you wish to make a buffer at the same pH, using the same substances, but want the total phosphate molarity ([HPO42−]+[H2PO−4]) to equal 0.20 M. What concentration of the Na2HPO4 would be required?
Chapter 19 Solutions
Fundamentals of General, Organic, and Biological Chemistry, Books a la Carte Edition; Modified Mastering Chemistry with Pearson eText -- ValuePack ... and Biological Chemistry (4th Edition)
Ch. 19.1 - Prob. 19.1PCh. 19.1 - The enzyme LDH converts lactate to pyruvate. In...Ch. 19.2 - The cofactors NAD+, Cu2+, Zn2+, coenzyme A, FAD,...Ch. 19.3 - Describe the reactions that you would expect these...Ch. 19.3 - Prob. 19.5PCh. 19.3 - Prob. 19.6PCh. 19.3 - Prob. 19.7PCh. 19.3 - Prob. 19.8PCh. 19.4 - Prob. 19.9KCPCh. 19.5 - Prob. 19.10KCP
Ch. 19.5 - Prob. 19.11PCh. 19.5 - Prob. 19.12PCh. 19.6 - Prob. 19.13PCh. 19.6 - Prob. 19.14PCh. 19.7 - (a) L-Threonine is converted to L-isoleucine in a...Ch. 19.8 - AZT (zidovudine) inhibits the synthesis of the HIV...Ch. 19.8 - Prob. 19.3CIAPCh. 19.8 - Prob. 19.16PCh. 19.9 - Does the enzyme described in each of the following...Ch. 19.9 - Prob. 19.18PCh. 19.9 - Compare the structures of vitamin A and vitamin C....Ch. 19.9 - Prob. 19.20PCh. 19.9 - Prob. 19.21KCPCh. 19.9 - Prob. 19.22PCh. 19.9 - Prob. 19.4CIAPCh. 19.9 - Prob. 19.6CIAPCh. 19.9 - Prob. 19.7CIAPCh. 19.9 - Enzyme levels in blood are often elevated in...Ch. 19.9 - Prob. 19.9CIAPCh. 19.9 - Prob. 19.23PCh. 19 - Prob. 19.24UKCCh. 19 - Prob. 19.25UKCCh. 19 - Prob. 19.26UKCCh. 19 - Prob. 19.27UKCCh. 19 - Prob. 19.28APCh. 19 - Explain how the following mechanisms regulate...Ch. 19 - Prob. 19.30APCh. 19 - Prob. 19.31APCh. 19 - Prob. 19.32APCh. 19 - Prob. 19.33APCh. 19 - Prob. 19.34APCh. 19 - Prob. 19.35APCh. 19 - Prob. 19.36APCh. 19 - Prob. 19.37APCh. 19 - Name an enzyme that acts on each molecule. (a)...Ch. 19 - Name an enzyme that acts on each molecule. (a)...Ch. 19 - What features of enzymes make them so specific in...Ch. 19 - Describe in general terms how enzymes act as...Ch. 19 - Prob. 19.42APCh. 19 - Prob. 19.43APCh. 19 - Prob. 19.44APCh. 19 - Prob. 19.45APCh. 19 - Prob. 19.46APCh. 19 - Prob. 19.47APCh. 19 - What is the difference between the lock-and-key...Ch. 19 - Why is the induced-fit model a more likely model...Ch. 19 - Prob. 19.50APCh. 19 - Prob. 19.51APCh. 19 - How do you explain the observation that pepsin, a...Ch. 19 - Prob. 19.53APCh. 19 - Prob. 19.54APCh. 19 - Prob. 19.55APCh. 19 - Prob. 19.56APCh. 19 - Prob. 19.57APCh. 19 - The text discusses three forms of enzyme...Ch. 19 - Prob. 19.59APCh. 19 - Prob. 19.60APCh. 19 - Prob. 19.62APCh. 19 - Prob. 19.63APCh. 19 - The meat tenderizer used in cooking is primarily...Ch. 19 - Prob. 19.65APCh. 19 - Why do allosteric enzymes have two types of...Ch. 19 - Prob. 19.67APCh. 19 - Prob. 19.68APCh. 19 - Prob. 19.69APCh. 19 - Prob. 19.70APCh. 19 - Prob. 19.71APCh. 19 - Prob. 19.72APCh. 19 - Prob. 19.73APCh. 19 - Prob. 19.74APCh. 19 - Prob. 19.75APCh. 19 - Prob. 19.76APCh. 19 - Prob. 19.77APCh. 19 - Prob. 19.78APCh. 19 - Prob. 19.79APCh. 19 - Prob. 19.80CPCh. 19 - Prob. 19.81CPCh. 19 - Prob. 19.82CPCh. 19 - Prob. 19.83CPCh. 19 - Prob. 19.84CPCh. 19 - Prob. 19.85CPCh. 19 - Prob. 19.86CPCh. 19 - Prob. 19.87CPCh. 19 - Prob. 19.88GPCh. 19 - The ability to change a selected amino acid...Ch. 19 - Prob. 19.90GPCh. 19 - Prob. 19.91GP
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