Biochemistry
6th Edition
ISBN: 9781337359573
Author: Reginald H. Garrett; Charles M. Grisham
Publisher: Cengage Learning US
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Chapter 15, Problem 20P
Interpretation Introduction
To explain:
The hyperventilation and hypoventilation of Hb (hemoglobin): O2binding using Figure 15.29 and 15.28 and blood pH and respiration.
Introduction:
Hyperventilation increases O2and decreases CO2where hypoventilation increases CO2in the blood. This leads to pH changes in the blood and O2affinity to hemoglobin.
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Consider the reaction:
phosphoglucoisomerase
Glucose 6-phosphate:
glucose 1-phosphate
After reactant and product were mixed and allowed to reach at 25 °C, the concentration of each compound at equilibrium
was measured:
[Glucose 1-phosphate] = 0.01 M
[Glucose 6-phosphate] = 0.19 M
Calculate Keq and AG°'.
Код
.0526
Incorrect Answer
7.30
AG°'
kJ mol-1
Incorrect Answer
Classify each phrase as describing kinases, phosphatases, neither, or both.
Kinases
Phosphatases
Neither
Both
Answer Bank
transfer phosphoryl groups to acidic amino acids in eukaryotes
may use ATP as a phosphoryl group donor
remove phosphoryl groups from proteins
catalyze reactions that are the reverse of dephosphorylation reactions
regulate the activity of other proteins
catalyze phosphorylation reactions
PKA as an example
turn off signaling pathways triggered by kinases
Consider the reaction.
kp
S P
kg
What effects are produced by an enzyme on the general reaction?
AG for the reaction increases.
The rate constant for the reverse reaction (kr) increases.
The reaction equilibrium is shifted toward the products.
The concentration of the reactants is increased.
The activation energy for the reaction is lowered.
The formation of the transition state is promoted.
Chapter 15 Solutions
Biochemistry
Ch. 15 - Answers to all problems are at the end of this...Ch. 15 - Answers to all problems are at the end of this...Ch. 15 - Answers to all problems are at the end of this...Ch. 15 - Answers to all problems are at the end of this...Ch. 15 - Prob. 5PCh. 15 - Prob. 6PCh. 15 - Prob. 7PCh. 15 - Prob. 8PCh. 15 - Answers to all problems are at the end of this...Ch. 15 - Answers to all problems are at the end of this...
Ch. 15 - Answers to all problems are at the end of this...Ch. 15 - Answers to all problems are at the end of this...Ch. 15 - Answers to all problems are at the end of this...Ch. 15 - Prob. 14PCh. 15 - Prob. 15PCh. 15 - Prob. 16PCh. 15 - Prob. 17PCh. 15 - Prob. 18PCh. 15 - Prob. 19PCh. 15 - Prob. 20PCh. 15 - Prob. 21PCh. 15 - Prob. 22PCh. 15 - Prob. 23PCh. 15 - Prob. 24P
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