Biochemistry
6th Edition
ISBN: 9781305577206
Author: Reginald H. Garrett, Charles M. Grisham
Publisher: Cengage Learning
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Chapter 18, Problem 14P
Energetic of Fructose-1 ,6-bis P Hydrolysis (Integrates with Chapter 3.)
The standard free energy change (
6-bisphosphate (FBP) to fructose-S-phosphate (F-6-P) and P: is
-16.7 KJ/mol:
FBP + H2O
The standard free energy change (
-30.5 KJ/mol:
ATP + H2O
- What is the standard free energy change for the phosphofructokinase reaction:
ATP + fructose-6-P
b. What is the equilibrium constant for this reaction?
c. Assuming the intracellular concentrations of [ATP] and (ADP] are maintained constant at 4 mM and 1.6 mM, respectively, in a rat liver cell, what will be the ratio of [FBP]/[fructose-6-P] when the phosphofructokinase reaction reaches equilibrium?
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7.
Assignment on KetohexosesConstruct the structure of the following enantiomers or mirror images:1. D and L Fructose2. D and L Allulose3. D and L Sorbose4. D and L Tagatose
What is the catalytic efficiency of Catalase ?
Table. The values of KM and kcat for some Enzymes and Substrates
Enzyme
Carbonic anhydrase
Substrate
CO2
HCO3
KM (M)
1.2 x 10-2
2.6 x 10-2
Kcat (s-1)
1.0 x 106
4.0 x 105
Catalase
H2O2
2.5 x 10-2
1.0 x 107
Urease
Urea
2.5 x 10-2
4.0 x 105
O A. 4 x 108 M-s-1
O B. 4 x 108 M-1.s-1
OC25x 10-9 M-s1
D. 2.5 x 102 M-1.s-1
OE 1.0 x 107 s1
Chapter 18 Solutions
Biochemistry
Ch. 18 - Characterizing Glycolysis List the reactions of...Ch. 18 - Radiotracer Labeling of Pyruvate from Glucose...Ch. 18 - Effects of Changing Metabolite Concentrations on...Ch. 18 - Prob. 4PCh. 18 - Prob. 5PCh. 18 - The Reactions and Meehanisms of the Leloir Pathway...Ch. 18 - The Effect of lodoacetic Acid on the...Ch. 18 - Prob. 8PCh. 18 - Comparing Glycolysis Entry Points for Sucrose...Ch. 18 - Prob. 10P
Ch. 18 - Prob. 11PCh. 18 - Prob. 12PCh. 18 - Prob. 13PCh. 18 - Energetic of Fructose-1 ,6-bis P Hydrolysis...Ch. 18 - Prob. 15PCh. 18 - Energetics of the Hexokinase Reaction The...Ch. 18 - Prob. 17PCh. 18 - Distinguishing the Mechanisms of Class I and Class...Ch. 18 - Prob. 19PCh. 18 - Understanding the Mechanism of Hemolytic Anemia...Ch. 18 - Prob. 21PCh. 18 - Based on your residing of this chapter, what would...Ch. 18 - Examine the ActiveModel for alcohol dehydrogenase...Ch. 18 - Based on your knowledge of the structure of NAD+...Ch. 18 - Using the ActiveModel for phosphofructokinase...
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