Biochemistry
6th Edition
ISBN: 9781337359573
Author: Reginald H. Garrett; Charles M. Grisham
Publisher: Cengage Learning US
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Chapter 3, Problem 8P
Answers to all problems are at the end of this book. Detailed solutions are available in the Student Solutions Manual, Study Guide, and Problems Book.
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Biochemistry
Ch. 3 - Answers to all problems are at the end of this...Ch. 3 - Answers to all problems are at the end of this...Ch. 3 - Answers to all problems are at the end of this...Ch. 3 - Answers to all problems are at (he end of this...Ch. 3 - Answers to all problems are at the end of this...Ch. 3 - Answers to all problems are at the end of this...Ch. 3 - Answers to all problems are at the end of this...Ch. 3 - Answers to all problems are at the end of this...Ch. 3 - Prob. 9PCh. 3 - Answers to all problems are at the end of this...
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- Answers to all problems are at the end of this book. Detailed solutions are available in the Student Solutions Manual, Study Guide, and Problems Book. Using Graphical Methods to Derive the Kinetic Constants for an Ordered, Single-Displacement Reaction The general rate equation for an ordered, single-displacement reaction where A is the leading substrate is v=Vmax[ A ][ B ](KsAKmB+KmA[ B ]+KmB[ A ]+[ A ][ B ])Write the Lineweaver-Burk (double-reciprocal) equivalent of this equation and from it calculate algebraic expressions for the following: a. The slope b. The y-intercepts c. The horizontal and vertical coordinates of the point of intersection when 1/v is plotted versus 1/[B] at various fixed concentrations of Aarrow_forwardAnswers to all problems are at the end of this book. Detailed solutions are available in the Student Solutions Manual, Study Guide, and Problems Book. Interpreting Kinetics Experiments from Graphical Patterns The following graphical patterns obtained from kinetic experiments have several possible interpretations depending on the nature of the experiment and the variables being plotted. Give at least two possibilities for each.arrow_forwardAnswers to all problems are at the end of this book. Detailed solutions are available in the Student Solutions Manual, Study Guide, and Problems Book. CalculatingGandSfromH The equilibrium constant for some process AB 0.5 at 20°C and 10 at 30°C. Assuming that G is independent of temperature, calculate H for this reaction. GandSat20Candat30C Why- is it important in this problem to assume that H is independent of temperature?arrow_forward
- Answers to all problems are at (he end of this book. Detailed solutions are available in the Student Solutions Manual, Study Guide, and Problems Book. Understanding State Functions Define a slate function. Name three thermodynamic quantities that are state functions and three thatarrow_forwardAnswers to all problems are at the end of this book. Detailed solutions are available in the Student Solutions Manual, Study Guide, and Problems Book. Calculating [H+] from pH Calculate the following from the pH values given in Table 2.3. [H+] in vinegar [H+] in saliva [H+] in household ammonia [OH-] in milk of magnesia [OH-] in beer [H+] inside a liver cellarrow_forwardAnswers to all problems are at the end of this book. Detailed solutions are available in the Student Solutions Manual, Study Guide, and Problems Book. Exploring the Michaelis-Menten Equation - I According to the Michaelis-Menten equation, what is the v/Vmax ratio when [S] = 4 Km?arrow_forward
- Answers to all problems are at the end of this book. Detailed solutions are available in the Student Solutions Manual, Study Guide, and Problems Book. Quantitative Relationships Between Rate Constants to Calculate Km, Kinetic Efficiency (kcat/Km) and Vmax - III The citric acid cycle enzyme fumarase catalyzes the conversion of fumarate to form malate. Fumarate+H2OmalateThe turnover number, kcat, for fumarase is 800/sec. The Km of fumarase for its substrate fumarate is 5M. a. In an experiment using 2 nanomole/mL of fumarase, what is Vmax? b. The cellular concentration of fumarate is 47.5 M. What is v when [fumarate] = 47.5 M? c. What is the catalytic efficiency of fumarase? d. Does fumarase approach catalytic perfection?arrow_forwardAnswers to all problems are at the end of this book. Detailed solutions are available in the Student Solutions Manual, Study Guide, and Problems Book. Calculating and Keq for Coupled Reactions For the process A B. Keq (AB) is 0.02 at 370C. For the process B C. Keq (BC)=1000 at 370C. Determine Keq (AC), the equilibrium constant for the overall process A C, from Keq((AB) and (BC). Determine standard-state free energy changes for all three processes, and use G. (AC) to determine Keq (AC). Make sure that ibis value agrees with that determined m part a of this problem.arrow_forwardAnswers to all problems are at the end of this book. Detailed solutions are available in the Student Solutions Manual, Study Guide, and Problems Book. Graphical Analysis of Negative Gooperativity in KNF Allosteric Enzyme Kinetics The KNF model for allosteric transitions includes the possibility of negative cooperativity Draw Lineweaver-Burk and Hanes-Woolf plots for the case of negative cooperatively m substrate binding. (As a point of reference, include a line showing the classic Michaelis-Menten response of v to [S].)arrow_forward
- Answers to all problems are at the end of this book. Detailed solutions are available in the Student Solutions Manual, Study Guide, and Problems Book. Calculating pH from [H+] Calculate the pH of the following. 5 10-4 M HCl 7 10-5 M NaOH 2M HCl 7 10-2 M KOH 04 m HCl 6 10-9 M HClarrow_forwardAnswers to all problems are at the end of this book. Detailed solutions are available in the Student Solutions Manual, Study Guide, and Problems Book. General Controls Over Enzyme Activity List six general ways in which enzyme activity is controlled.arrow_forwardAnswers to all problems are at the end of this book. Detailed solutions are available in the Student Solutions Manual, Study Guide, and Problems Book. Quantitative Relationships Between Rale Constants to Calculate Km, Kinetic Efficiency (kcat/Km) and Vmax - II Triose phosphate isomerase catalyzes the conversion of glyceraldehyde-3-phosphate to dihydroxy-acetone phosphate. Glyceraldehyde3PdihydroxyacetonePThe Km of this enzyme tor its substrate glyceraldehyde-3-phosphate is 1.8 10-5 M. When [glyceraldehydes-3-phosphate] = 30 M, the rate of the reaction, v, was 82.5 mol mL-1 sec-1. a. What is Vmax for this enzyme? b. Assuming 3 nanomoles per mL of enzyme was used in this experiment ([Etotal]) = 3 nanomol/mL), what is kcat for this enzyme? c. What is the catalytic efficiency (kcat/Km) for triose phosphate isomerase? d. Does the value of kcat/Km reveal whether triose phosphate isomerase approaches catalytic perfection? e. What determines the ultimate speed limit of an enzyme-catalyzed reaction? That is, what is it that imposes the physical limit on kinetic perfection?arrow_forward
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