Biochemistry
9th Edition
ISBN: 9781305961135
Author: Mary K. Campbell, Shawn O. Farrell, Owen M. McDougal
Publisher: Cengage Learning
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Chapter 20, Problem 11RE
MATHEMATICAL Calculate
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61. MATHEMATICAL For the following aspartase reaction (see Ques-
tion 28) in the presence of the inhibitor hydroxymethylaspar-
tate, determine K and whether the inhibition is competitive or
noncompetitive.
[S]
(molarity)
V, No Inhibitor
(arbitrary units)
V, Inhibitor Present
(same arbitrary units)
:21×10¹01 0.026 TOIV 0.0109 9
5 X 10
0.092
0.040
0.086
0.120
10-3
IPO?
2.5 10-³
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Chapter 20 Solutions
Biochemistry
Ch. 20 - RECALL Briefly summarize the steps in the electron...Ch. 20 - RECALL Are electron transport and oxidative...Ch. 20 - Prob. 3RECh. 20 - REFLECT AND APPLY Show how the reactions of the...Ch. 20 - REFLECT AND APPLY How does mitochondrial structure...Ch. 20 - Prob. 6RECh. 20 - Prob. 7RECh. 20 - MATHEMATICAL Using the information in Table 20.2,...Ch. 20 - Prob. 9RECh. 20 - Prob. 10RE
Ch. 20 - MATHEMATICAL Calculate E for the following...Ch. 20 - Prob. 12RECh. 20 - MATHEMATICAL Which is more favorable...Ch. 20 - REFLECT AND APPLY Comment on the fact that the...Ch. 20 - RECALL What do cytochromes have in common with...Ch. 20 - RECALL How do the cytochromes differ from...Ch. 20 - RECALL Which of the following does not play a role...Ch. 20 - Prob. 18RECh. 20 - Prob. 19RECh. 20 - REFLECT AND APPLY Two biochemistry students are...Ch. 20 - REFLECT AND APPLY Cytochrome oxidase and...Ch. 20 - Prob. 22RECh. 20 - REFLECT AND APPLY Reflect on the evolutionary...Ch. 20 - REFLECT AND APPLY Experimental evidence strongly...Ch. 20 - Prob. 25RECh. 20 - REFLECT AND APPLY What is the advantage of having...Ch. 20 - REFLECT AND APPLY Why do the electron-transfer...Ch. 20 - Prob. 28RECh. 20 - Prob. 29RECh. 20 - Prob. 30RECh. 20 - RECALL Describe the role of the F1 portion of ATP...Ch. 20 - Prob. 32RECh. 20 - Prob. 33RECh. 20 - Prob. 34RECh. 20 - REFLECT AND APPLY What is the approximate P/O...Ch. 20 - REFLECT AND APPLY Why is it difficult to determine...Ch. 20 - REFLECT AND APPLY What are some of the...Ch. 20 - RECALL Briefly summarize the main arguments of the...Ch. 20 - Prob. 39RECh. 20 - Prob. 40RECh. 20 - Prob. 41RECh. 20 - Prob. 42RECh. 20 - REFLECT AND APPLY Criticize the following...Ch. 20 - Prob. 44RECh. 20 - Prob. 45RECh. 20 - Prob. 46RECh. 20 - RECALL How does the yield of ATP from complete...Ch. 20 - REFLECT AND APPLY The malate-aspartate shuttle...Ch. 20 - MATHEMATICAL What yield of ATP can be expected...Ch. 20 - MATHEMATICAL The free-energy change (G) for the...
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- MATHEMATICAL Using the information in Table 20.2, calculate G for the following reaction: 2Cytaa3[oxidized;Fe(III)]+2Cytb[reduced;Fe(II)]2Cytaa3[reduced;Fe(II)]+2Cytb[oxidized;Fe(III)]arrow_forwardMATHEMATICAL For an enzyme that displays MichaelisMenten kinetics, what is the reaction velocity, V (as a percentage of Vmax), observed at the following values? (a) [S]=KM (b) [S]=0.5KM (c) [S]=0.1KM (d) [S]=2KM (e) [S]=10KMarrow_forwardMATHEMATICAL If a reaction can be written AB, and the G is 20kJmol1, what would the substrate/product ratio have to be for the reaction to be thermodynamically favorable?arrow_forward
- MATHEMATICAL Consider the reaction AB+C, where G=0.00. (a) What is the value of G (not G) when the initial concentrations of A, B, and C are 1 M, 103M,and106M? (b) Try the same calculations for the reaction D+EF, for the same relative order of concentrations. (c) Try the same calculations for the reaction GH, if the concentrations are 1Mand103M for G and H, respectively.arrow_forwardMATHEMATICAL The standard free-energy change for the reaction Arginine+ATPPhosphoarginine+ADP is +1.7kJmol1. From this information and that in Table 15.1, calculate the G for the reaction Phosphoarginine+H2OArginine+Piarrow_forwardREFLECT AND APPLY The following half reactions play important roles in metabolism. 1/2O2+2H++2eH2ONADH+H+NAD++2H++2e Which of these two is a half reaction of oxidation? Which one is a half reaction of reduction? Write the equation for the overall re- action. Which reagent is the oxidizing agent (electron acceptor)? Which reagent is the reducing agent (electron donor)?arrow_forward
- MATHEMATICAL How would you prepare 1 L of a 0.050 M phosphate buffer at pH 7.5 using crystalline K2HPO4 and a solution of 1.0 M HCl?arrow_forwardREFLECT AND APPLY What do the following indicators tell you about whether a reaction can proceed as written? (a) The standard free-energy change is positive. (b) The free-energy change is positive. (c) The reaction is exergonic.arrow_forwardMATHEMATICAL What is the [CH3COO]/[CH3COOH] ratio in an acetate buffer at pH 4.00?arrow_forward
- MATHEMATICAL Calculate the pH of a buffer solution prepared by mixing 25 mL of 1.0 M lactic acid and 75 mL of 1.0 M sodium lactate.arrow_forwardREFLECT AND APPLLY Show, by a series of equations, the energetics of phosphorylation of ADP by phosphoenolpyruvate.arrow_forwardREFLECT AND APPLLY Is the reaction of 2-phosphoglycerate to phosphoenolpyruvate a redox reaction? Give the reason for your answer.arrow_forward
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