Concept explainers
(a)
Interpretation:
The equilibrium constant for the reaction should be calculated.
Concept Introduction:
A
(a)
Answer to Problem 1P
The equilibrium constant for the reaction is 360,333
Explanation of Solution
The equilibrium constant can be calculated as follows:
(b)
Interpretation:
The factor that must exceed in the reaction to proceed in the reverse direction should be explained.
Concept Introduction:
For the reverse reaction, the expression for
(b)
Answer to Problem 1P
The reaction will proceed in the reverse direction when G > 0. The natural log term must be >1.
Explanation of Solution
The reaction will proceed in the reverse direction when G > 0. The natural log term must be >1.
We already know that [ATP] = [ADP]. By using this reaction and the value obtained in part a gives:
(c)
Interpretation:
The value of Keqshould be explained.
Concept Introduction:
The same magnitude relation of merchandise and reactants are going to be reached. Keq is independent of pressure. Basically, changes in pressure are like changes in concentration for gases. Keq can rely upon the relative energies of reactants and merchandise.
(c)
Answer to Problem 1P
The value of Keq=
Explanation of Solution
With the help of the formula described in part a, Keqcan be calculated.
(d)
Interpretation:
The ratio of [PEP] / [pyruvate] should be explained.
Concept Introduction:
For the reaction, the expression for the equilibrium constant is as follows:
(d)
Answer to Problem 1P
The ratio of [PEP] / [pyruvate] is equal to 724
Explanation of Solution
Told that [ATP] = [ADP], [GTP] = [GDP], and [Pi] = 1 1 mM, we can figure out the ratio of [PEP] to [pyruvate].
(e)
Interpretation:
The reason for the substrate cycle to be strongly favored in both directions under physiological conditions should be explained.
Concept Introduction:
The same magnitude relation of merchandise and reactants are going to be reached. Keq is independent of pressure. Basically, changes in pressure are like changes in concentration for gases. Keq can rely upon the relative energies of reactants and merchandise.
For the reaction, the expression for the equilibrium constant is as follows:
(e)
Answer to Problem 1P
The reaction will be favorable in both directions under the following conditions:
Explanation of Solution
With the help of the observation from part b and part d of this question, the reaction will be favorable in both directions under the following conditions.
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Chapter 27 Solutions
Study Guide With Student Solutions Manual And Problems Book For Garrett/grisham's Biochemistry, 6th
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- BiochemistryBiochemistryISBN:9781305577206Author:Reginald H. Garrett, Charles M. GrishamPublisher:Cengage Learning