Biochemistry
6th Edition
ISBN: 9781305577206
Author: Reginald H. Garrett, Charles M. Grisham
Publisher: Cengage Learning
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Chapter 9, 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.
Determining the
Consider a phospholipid vesicle containing 10mM Na+ ions. The vesicle is bathed in a solution that contains 52mM Na+ ions, and the electrical potential difference across the vesicle membrane
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Biochemistry
Ch. 9 - Answers to all problems are at the end of this...Ch. 9 - Answers to all problems are at the end of this...Ch. 9 - Answers to all problems are at the end of this...Ch. 9 - Prob. 4PCh. 9 - Answers to all problems are at the end of this...Ch. 9 - Answers to all problems are at the end of this...Ch. 9 - Answers to all problems are at the end of this...Ch. 9 - Answers to all problems are at the end of this...Ch. 9 - Answers to all problems are at the end of this...Ch. 9 - Answers to all problems are at the end of this...
Ch. 9 - Prob. 11PCh. 9 - Prob. 12PCh. 9 - Answers to all problems are at the end of this...Ch. 9 - Prob. 14PCh. 9 - Prob. 15PCh. 9 - Prob. 16PCh. 9 - Answers to all problems are at the end of this...Ch. 9 - Prob. 18PCh. 9 - Prob. 19PCh. 9 - Prob. 20PCh. 9 - Prob. 21PCh. 9 - Prob. 22PCh. 9 - Prob. 23PCh. 9 - Prob. 24PCh. 9 - Answers to all problems are at the end of this...Ch. 9 - Prob. 26PCh. 9 - Prob. 27PCh. 9 - Prob. 28PCh. 9 - Prob. 29PCh. 9 - Prob. 30PCh. 9 - Prob. 31P
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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. Cells as Steady-State Systems Describe what is meant by the phrase "cells tire steady-state systems." (Section 1.4)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. Draw the Titration Curve for a Weak Acid and Determine its pKa from the Titration Curve When a 0.1 M solution of a weak acid was titrated with base, the following results were obtained: Plot the results of this titration and determine the pK a of the weak acid from your graph.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. Preparing a Phosphate Buffer Solution of pH 7.5 from Solutions of Na3PO4 and H3PO4 Given 0.1 M solutions of Na3PO4, and H3PO4 describe the preparation of 1 L of a phosphate buffer at a pH of 7.5. What are the molar concentrations of the ions in the final buffer solution, including Na+ and H+?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. 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 (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. Calculate the pH in a Muscle Cell from the HPO42-/H2PO4Ratio If the internal pH of a muscle cell is 6.8, what is the [HPO42-]/ [H2PO4-] ratio in this cell?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. Assessing the Effect of Temperature on Equilibrium You are studying the various components of the venom of a poisonous lizard. One of the venom components is a protein that appears to be temperature sensitive. When heated, it denatures and is no longer toxic. The process can be described by the following simple equation: There is only enough protein from this venom to carry out two equilibrium measurements. At 298 K, you find that 98% of the protein is in its to.\ic form. However, when you raise the temperature to 320 �.. you find that only 10% of the protein is in its toxic form. Calculate the equilibrium constants for the T to N conversion at these two temperatures. Use the data to determine the H,S, and G for this process.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 the pH of a Solution of a Weak Acid; Calculating the pH of the Solution after the Addition of Strong Base The ka for formic acid is 1.78 10-4 M. What is the pH of a 0.1 M solution of formic acid? 150 mL of 0.1 M NaOH is added to 200 mL of 0.1 M formic acid, and water is added to give a final volume of 1 L. What is the pH of the final solution?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. Comparing Membrane Barrel Structures Compare the porin proteins, which have transmembrane pores constructed from -barrels, with the Wza protein, which has a transmembrane pore constructed from a ring of -helices. How many amino acids are required to form the -barrel of a porin? How many would be required to form the same-sized pore from -helices?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. Prepare a Buffer by Combining a Solution of Weak Acid with a Solution of the Salt of the Weak Acid Given 0.1 M solutions of acetic acid and sodium acetate, describe the preparation of 1 L of 0.1 M acetate buffer at a pH of 5.4.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. Understanding the Phase Transitions of Membrane Phospholipids Discuss the effects on the lipid phase transition of pure dimyristoyl phosphatidylcholine vesicles of added (a) divalent cations, (b) cholesterol, (c) distearoyl phosphatidylscrine. (d) dioleoyl phosphatidylcholine, and (e) integral meinbrane proteins.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 Rate Constants to Calculate Km, Kinetic Efficiency (kcat/Km) and Vmax - VI The enzyme catalase catalyzes the decomposition of hydrogen peroxide: 2H2O22H2O+O2The turnover number (kcat) for catalase is 40,000,000 sec-1. The Km of catalase for its substrate H2O2 is 0.11 M. a. In an experiment using 3 nanomole/L of catalase, what is Vmax? b. What is v when [H2O2] = 0.75 M? c. What is the catalytic efficiency of catalase? d. Does catalase approach catalytic perfection?arrow_forward
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