Connect 1-Semester Online Access for Principles of General, Organic & Biochemistry
2nd Edition
ISBN: 9780077633707
Author: Janice Smith
Publisher: Mcgraw-hill Higher Education (us)
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Chapter 18, Problem 18.33UKC
When a substrate is oxidized, is NAD+ oxidized or reduced? Is NAD+ an oxidizing agent or a reducing agent?
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Glycerol-3-phosphatase catalyzes the hydrolysis of glycerol-3-phosphate according to the following reaction.Glycerol-3-P + H₂O ⇌ glycerol + Pi
When the enzyme is added to a solution of 1.25 M glycerol-3-phosphate at 25.0°C, and the reaction proceeds to equilibrium, the equilibrium concentration of glycerol-3-phosphate is 3.60×10⁻² M. Calculate the standard free energy of hydrolysis of glycerol-3-phosphate.
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ClO– + CH3CO2H ⇌ HClO + CH3CO2–
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Permanganate, MnO4–, can act as an oxidizing agent in both acidic and basic aqueous solutions. Balance each of the following reactions by the half–reaction method, showing all steps in the balancing process.
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In the KEGG database, the pathway map for
glycolysis and gluconeogenesis (search for
"glycolysis gluconeogenesis") indicates that
__unique enzyme/s can catalyze the
conversion of a-D-glucose to a-D-glucose-6-
phosphate (a-D-glucose-6P).
03
02
04
01
Chapter 18 Solutions
Connect 1-Semester Online Access for Principles of General, Organic & Biochemistry
Ch. 18.1 - Prob. 18.1PCh. 18.2 - Prob. 18.2PCh. 18.2 - Prob. 18.3PCh. 18.2 - Prob. 18.4PCh. 18.3 - Prob. 18.5PCh. 18.3 - What makes riboflavin a water-soluble vitamin?Ch. 18.3 - Prob. 18.7PCh. 18.4 - Identify the type of carbonyl groups present in...Ch. 18.4 - Prob. 18.9PCh. 18.4 - Prob. 18.10P
Ch. 18.5 - Prob. 18.11PCh. 18.5 - (a) In what way(s) is the conversion of pyruvate...Ch. 18.6 - Prob. 18.15PCh. 18 - Prob. 18.31UKCCh. 18 - Prob. 18.32UKCCh. 18 - When a substrate is oxidized, is NAD+ oxidized or...Ch. 18 - When a substrate is reduced, is FADH2 oxidized or...Ch. 18 - Prob. 18.35UKCCh. 18 - Prob. 18.36UKCCh. 18 - Prob. 18.39UKCCh. 18 - Prob. 18.40UKCCh. 18 - Prob. 18.41UKCCh. 18 - Prob. 18.42UKCCh. 18 - Prob. 18.45APCh. 18 - What is the difference between metabolism and...Ch. 18 - Prob. 18.47APCh. 18 - Prob. 18.48APCh. 18 - Prob. 18.49APCh. 18 - Prob. 18.50APCh. 18 - Prob. 18.51APCh. 18 - Prob. 18.52APCh. 18 - Prob. 18.53APCh. 18 - Classify each substance as an oxidizing agent, a...Ch. 18 - Prob. 18.55APCh. 18 - Prob. 18.56APCh. 18 - Prob. 18.58APCh. 18 - What is the role of each of the following in the...Ch. 18 - Prob. 18.71APCh. 18 - Prob. 18.72AP
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- Based on the graphical information in Problem 21-41 about enzymes A and B indicate whether the enzyme activity of enzyme B increases or decreases when the following changes in reaction conditions are made. a. pH decreases from 7.6 to 7.2 b. pH increases from 7.2 to 7.4 c. temperature decreases from 37.8C to 37.6C d. temperature increases from 38.2C to 38.4Carrow_forwardTo which of the six major classes of enzymes does the enzyme that catalyzes each of the following reactions belong? a. A cis double bond is converted to a trans double bond. a. An alcohol is dehydrated to form a compound with a double bond. b. An amino group is transferred from one substrate to another. c. An ester linkage is hydrolyzed.arrow_forwardWhich of the following is not a characteristic of enzymes? a. They are macromolecules. b. They act on substances. c. They are phospholipids. d. They initiate and decelerate chemical reactions. e. They act as catalysts.arrow_forward
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- The first step of the metabolic process known as glycolysis is the conversion of glucose to glucose- 6-phosphate. This process has a positive value for rG' Glucose + Pi Glucose-6-phosphate + H2O rG' = +13.8 kJ/mol-rxn This reaction is coupled to the hydrolysis of ATP ATP + H2O ADP + Pi rG' = -30.5 kJ/mol-rxn What is the sum of these two equations and the value of rG' for the coupled reaction? Is the coupled reaction product-favored at equilibrium?arrow_forwardTo which of the six major classes of enzymes does the enzyme that catalyzes each of the following reactions belong? a. An L isomer is converted to a D isomer. a. A phosphate group is transferred from one substrate to another. b. An amide linkage is hydrolyzed. c. Hydrolysis of a carbohydrate to monosaccharides occurs.arrow_forwardChemistry What is the main aspect that the enzymes succinyl-CoA synthetase, pyruvate kinase, and phosphoglycerate kinase have in common?arrow_forward
- Give the name of the enzyme that will most likely catalyze each of the following reactions: O CH3 - CH2 - OH + NAD+ → CH3 – C – H + NADH + H+ Ans. ___________________________________________ CH3 – C – COOH + R – CH – COOH → CH3 – CH – COOH + R – C – COOH O NH2 NH2 O HO – C – CH – CH2 – C – OH → HO – C – CH = CH – C – OH + H2O O OH O O O CO2 + CH3 – C – C – OH + ATP → HO – C – CH2 – C – C – OH + ADP + Pi O O O O…arrow_forwardWhich of the following describes the role of an enzyme in a biochemical reaction? Enzyme does not affect the rate of a biochemical reaction. Enzyme slows down a biochemical reaction. Enzyme speeds up a biochemical reaction. Enzyme increases the equilibrium constant of a biochemical reaction.arrow_forwardThe enzyme that catalyzes the following reaction belongs to which class? is-l O Lyase Isomerase Oxidoreductase O Hydrolase OHarrow_forward
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