Anatomy & Physiology
5th Edition
ISBN: 9780321861580
Author: Marieb, Elaine N.
Publisher: Pearson College Div
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Question
Chapter 2, Problem 30SAQ
Summary Introduction
To determine:
The equation representing the oxidative breakdown of glucose by body cells, is a reversible reaction.
Glucose + oxygen carbon dioxide + water +ATP
(a) Indicate reaction is reversible.
(b) The reaction is in
(c) Define chemical equilibrium.
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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
The following questions are based on the reaction A+ B ↔ C+D shown in Figure 8.1.
1. Which of the following terms best describes the progress of the reaction with respect to free energy change?
a) endergonic, ∆G> 0
b) exergonic, ∆G> 0
c) exergonic, ∆G< 0
d) endergonic, ∆G< 0
2. Which of the following in Figure 8.1 remains unchanged by having an enzyme included?
a) b
b) d
c) a
d) c
3. The part labeled “C” on the above graph represents
a) Energy of activation without enzyme
b) Energy of activation with enzyme
c) Amount of free energy released
d) amount of energy required for the reaction progress
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 2 Solutions
Anatomy & Physiology
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