Microbiology: An Evolving Science (Fourth Edition)
4th Edition
ISBN: 9780393615098
Author: John W. Foster, Joan L. Slonczewski
Publisher: W. W. Norton & Company
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Chapter 13.1, Problem 1TQ
Summary Introduction
To analyze:
The catabolism of glucose led to the release of greater amount of energy as heat or by the change of entropy.
Introduction:
The cells present in organisms need energy to build basic macromolecules from simple molecules in the environment. Entropy is the degree of randomness of the system. Energetics of a biochemical reaction can be understood by the following equation: ΔG= ΔH-TΔS, where ΔG is the Gibbs free energy change, ΔH is the change in enthalpy, T is temperature and ΔS is the change in entropy.
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Define potential energy and kinetic energy and provide two specific examples of each. Explain how one form of energy can be converted into another. Will some energy be lost during this conversion? If so, what form will it take?
Label the following statements true or false: (c) A nonspontaneous reaction will proceed spontaneously in the reverse direction. (d) A spontaneous process can occur with a large decrease in entropy.
A chemical reaction has a △G of -14 kcal/mol. Adding an enzyme has been shown to increase the reaction 10-fold. What would be the △G of the reaction when that enzyme is added?
A) -1.4 kcal/mol
B) -14 kcal/mol
C) +14 kcal/mol
D) -140 kcal/mol
Chapter 13 Solutions
Microbiology: An Evolving Science (Fourth Edition)
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