Biochemistry
9th Edition
ISBN: 9781305961135
Author: Mary K. Campbell, Shawn O. Farrell, Owen M. McDougal
Publisher: Cengage Learning
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Textbook Question
Chapter 6, Problem 12RE
REFLECT AND APPLY Can the presence of a catalyst increase the amount of product obtained in a reaction?
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Chapter 6 Solutions
Biochemistry
Ch. 6 - RECALL How does the catalytic effectiveness of...Ch. 6 - RECALL Are all enzymes proteins?Ch. 6 - MATHEMATICAL Catalase breaks down hydrogen...Ch. 6 - REFLECT AND APPLY Give two reasons why enzyme...Ch. 6 - RECALL For the reaction of glucose with oxygen to...Ch. 6 - REFLECT AND APPLY Would nature rely on the same...Ch. 6 - REFLECT AND APPLY Suggest a reason why heating a...Ch. 6 - REFLECT AND APPLY A model is proposed to explain...Ch. 6 - REFLECT AND APPLY Does the presence of a catalyst...Ch. 6 - REFLECT AND APPLY What effect does a catalyst have...
Ch. 6 - REFLECT AND APPLY An enzyme catalyzes the...Ch. 6 - REFLECT AND APPLY Can the presence of a catalyst...Ch. 6 - RECALL For the hypothetical reaction 3A+2B2C+3D...Ch. 6 - REFLECT AND APPLY The enzyme lactate dehydrogenase...Ch. 6 - REFLECT AND APPLY Would you use a pH meter to...Ch. 6 - REFLECT AND APPLY Suggest a reason for carrying...Ch. 6 - RECALL Distinguish between the lock-and-key and...Ch. 6 - RECALL Using an energy diagram, show why the...Ch. 6 - REFLECT AND APPLY Other things being equal, what...Ch. 6 - REFLECT AND APPLY Amino acids that are far apart...Ch. 6 - REFLECT AND APPLY If only a few of the amino acid...Ch. 6 - RECALL Show graphically how the reaction velocity...Ch. 6 - RECALL Define steady state, and comment on the...Ch. 6 - RECALL How is the turnover number of an enzyme...Ch. 6 - MATHEMATICAL For an enzyme that displays...Ch. 6 - MATHEMATICAL Determine the values of KM and Vmax...Ch. 6 - MATHEMATICAL The kinetic data in the following...Ch. 6 - MATHEMATICAL The enzyme -methylaspartase catalyzes...Ch. 6 - MATHEMATICAL The hydrolysis of a...Ch. 6 - MATHEMATICAL For the Vmax obtained in Question 26,...Ch. 6 - MATHEMATICAL You do an enzyme kinetic experiment...Ch. 6 - REFLECT AND APPLY The enzyme D-amino acid oxidase...Ch. 6 - REFLECT AND APPLY Why is it useful to plot rate...Ch. 6 - REFLECT AND APPLY Under what conditions can we...Ch. 6 - BIOCHEMICAL CONNECTIONS Why does acetazolamide...Ch. 6 - BIOCHEMICAL CONNECTIONS How did scientists...Ch. 6 - BIOCHEMICAL CONNECTIONS How do the KM values for...Ch. 6 - Prob. 38RECh. 6 - RECALL What are the three most common mechanisms...Ch. 6 - RECALL What is the biggest difference between a...Ch. 6 - RECALL How do scientists determine the KM of a...Ch. 6 - Prob. 42RECh. 6 - Prob. 43RECh. 6 - RECALL Do all enzymes display kinetics that obey...Ch. 6 - RECALL How can you recognize an enzyme that does...Ch. 6 - RECALL If we describe an enzyme like aspartate...Ch. 6 - RECALL How can competitive and pure noncompetitive...Ch. 6 - RECALL Why does a competitive inhibitor not change...Ch. 6 - RECALL Why does a pure noncompetitive inhibitor...Ch. 6 - RECALL Distinguish between the molecular...Ch. 6 - RECALL Can enzyme inhibition be reversed in all...Ch. 6 - RECALL Why is a Lineweaver-Burk plot useful in...Ch. 6 - RECALL Where do lines intersect on a...Ch. 6 - RECALL What is the difference between pure and...Ch. 6 - REFLECT AND APPLY Why can we say that having a...Ch. 6 - REFLECT AND APPLY When we compare the binding of I...Ch. 6 - RECALL Why does the apparent KM decrease in the...Ch. 6 - RECALL What is a suicide substrate? Why are they...Ch. 6 - RECALL If we made a Lineweaver-Burk plot of an...Ch. 6 - Prob. 60RECh. 6 - MATHEMATICAL For the following aspartase reaction...Ch. 6 - REFLECT AND APPLY Is it good (or bad) that enzymes...Ch. 6 - REFLECT AND APPLY Noncompetitive inhibition is a...Ch. 6 - BIOCHEMICAL CONNECTIONS You have been hired by a...Ch. 6 - REFLECT AND APPLY Would you expect an irreversible...Ch. 6 - REFLECT AND APPLY Would you expect the structure...Ch. 6 - Prob. 67RECh. 6 - Prob. 68RE
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- REFLECT AND APPLY A reaction at 23C has G=1kJmol1. Why might this reaction become spontaneous at 37C?arrow_forwardREFLECT AND APPLY Would nature rely on the same enzyme to catalyze a reaction either way (forward or backward) if the DG were 0.8kcalmol1? If it were 5.3kcalmol1?arrow_forwardREFLECT AND APPLY Why is it important that energy released by exergonic reactions can be used to provide energy for endergonic reactions?arrow_forward
- REFLECT AND APPLY Does the presence of a catalyst alter the standard free energy change of a chemical reaction?arrow_forwardREFLECT AND APPLY What effect does a catalyst have on the activation energy of a reaction?arrow_forwardREFLECT AND APPLY Why can we say that having a pure non- competitive inhibitor present is similar to just having less enzyme present?arrow_forward
- REFLECT AND APPLY Give two reasons why enzyme catalysts are 103 to 105 more effective than reactions that are catalyzed by, for example, simple H+orOH.arrow_forwardREFLECT AND APPLY Why are proteins more effective catalysts than RNA molecules?arrow_forwardREFLECT AND APPLY How would you modify your answer to Question 29 in light of the material on thermodynamics?arrow_forward
- REFLECT AND APPLY Consider the reaction Glucose-6-phosphate+H2OGlucose+PiKeq=[glucose][Pi][glucose-6-P] The Keq at pH 8.5 and 38C is 122. Can you determine the rate of the reaction from this information?arrow_forwardREFLECT AND APPLY Suggest a reason why heating a solution containing an enzyme markedly decreases its activity. Why is the decrease of activity frequently much less when the solution contains high concentrations of the substrate?arrow_forwardREFLECT AND APPLY In 1828, Wohler was the first person to synthesize an organic compound (urea, from ammonium cyanate). How did this contribute, ultimately, to biochemistry?arrow_forward
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