Organic Chemistry
7th Edition
ISBN: 9780321803221
Author: Paula Y. Bruice
Publisher: Prentice Hall
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Question
Chapter 25, Problem 58P
Interpretation Introduction
Interpretation:
The coenzymes required in the given conversions of the fatty acid metabolic process should be given.
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Students have asked these similar questions
The TCA cycle (or tricarboxylic acid cycle) breaks down acetyl CoA and captures
the energy in high energy molecules.
For each molecule of acetyl CoA, the TCA cycle yields
A) 1 ATP and 1 NADH
B) 1 CO₂ and 2 NADH
C) 4 CO₂ and 6 NADH and 2 FADH2
2
D) 2 CO₂ and 3 NADH and 1 FADH₂
E) 2 CO₂ and 3 NADH and and 1 FADH₂ and 1
ATP
Most fatty acids have an even number of carbons and, therefore, are completely metabolized to acetyl-CoA. A fatty acid with an odd number of carbons is metabolized to acetyl-CoA and one equivalent of propionyl-CoA. The following two reactions convert propionyl-CoA into succinyl-CoA, a citric acid cycle intermediate, so it can be further metabolized. Each of the reactions requires a coenzyme. Identify the coenzyme for each step. From what vitamins are the coenzymes derived?
Fatty acids and triglycerides are an important source of nutrition and a dense form
of stored energy. Digestion of fats yields more energy per gram than digestion of
carbohydrates.
Each turn on the B-oxidation spiral results in the formation of a new acetyl COA
molecule. This molecule can then be used to generate more energy in
A) fatty acid synthesis
B) ketolysis
C) glycolysis
D) tricarboxylic acid cycle
E) oxidative phosphorylation
Chapter 25 Solutions
Organic Chemistry
Ch. 25.6 - Prob. 2PCh. 25.6 - Prob. 3PCh. 25.6 - Why does the OH group add to the -carbon rather...Ch. 25.6 - Prob. 5PCh. 25.6 - How many molecules of NADH are formed from the...Ch. 25.7 - Prob. 7PCh. 25.7 - Prob. 8PCh. 25.7 - The oxidation of glyceraldehyde-3-phosphate to...Ch. 25.7 - Prob. 10PCh. 25.8 - Prob. 11P
Ch. 25.8 - Prob. 12PCh. 25.8 - Prob. 13PCh. 25.8 - Propose a mechanism for the reduction of...Ch. 25.9 - Prob. 15PCh. 25.9 - Prob. 16PCh. 25.10 - Acid-catalyzed dehydration reactions are normally...Ch. 25.10 - Prob. 18PCh. 25.10 - Prob. 19PCh. 25.10 - Acid-catalyzed dehydration reactions are normally...Ch. 25.10 - Prob. 21PCh. 25.10 - Prob. 22PCh. 25.11 - Prob. 23PCh. 25.12 - a. What is the name of the enzyme that converts...Ch. 25.15 - Prob. 25PCh. 25.16 - Prob. 26PCh. 25.16 - Prob. 27PCh. 25.17 - Propose mechanisms for the Claisen condensation...Ch. 25.17 - Prob. 29PCh. 25.17 - Propose a mechanism for the conversion of...Ch. 25.17 - Propose a mechanism for the biosynthesis of...Ch. 25.17 - Propose a mechanism for the conversion of the E...Ch. 25.17 - The fluoro-substitued geranyl pyrophosphate shown...Ch. 25.17 - Prob. 35PCh. 25.18 - Draw the individual 1,2-hydride and 1,2-methyl...Ch. 25 - Prob. 38PCh. 25 - Prob. 39PCh. 25 - Prob. 40PCh. 25 - Prob. 41PCh. 25 - Prob. 42PCh. 25 - Prob. 43PCh. 25 - Prob. 44PCh. 25 - Prob. 45PCh. 25 - Prob. 46PCh. 25 - Prob. 47PCh. 25 - Prob. 48PCh. 25 - Prob. 49PCh. 25 - Prob. 50PCh. 25 - Prob. 51PCh. 25 - Prob. 52PCh. 25 - Prob. 53PCh. 25 - Prob. 54PCh. 25 - Prob. 55PCh. 25 - Prob. 56PCh. 25 - Prob. 57PCh. 25 - Prob. 58PCh. 25 - Prob. 59PCh. 25 - Prob. 60PCh. 25 - Prob. 61PCh. 25 - Prob. 62PCh. 25 - UDP-galactose-4-epimerase converts UDP-galactose...Ch. 25 - A student is trying to determine the mechanism for...Ch. 25 - What would be the results of the experiment in...Ch. 25 - Prob. 66PCh. 25 - Propose a mechanism for the biosynthesis of...Ch. 25 - Eudesmol is a sesquiterpene found in eucalyptus....
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- draw and Identify different types of organic reaction mechanims in the following metabolic pathways. Conversion of Pyruvate to Acetyl CoA Citric acid cycle Gluconeogenesis pathway (pyruvate to glucose) Catabolism of triacylglycerols- beta-oxidation pathway Biosynthesis of fatty acids from Acetyl CoA Glycolysis (from glucose to two molecules of pyruvate)arrow_forwardStearic acid is the common name for the C18 straight-chain, saturated fatty acid. Draw the structure of the fatty acyl-CoA that this forms (you don't have to draw out all of the atoms in coenzyme A; you can represent it as S-, and then show all of the reactions). Draw & identify all of the compounds formed when the eighteen carbon fat is converted to two molecules of acetyl-CoA and the fourteen-carbon fat via two turns of the fatty acid spiral. List the enzymes and coenzymes that are part of the pathway.arrow_forwardAcyl-CoA synthase is the enzyme that activates a fatty acid by converting it to a fatty acyl-CoA in a series of two reactions. In the first reaction, the fatty acid reacts with ATP and one of the products formed is ADP. The other product reacts in a second reaction with CoASH to form the fatty acyl-CoA. Propose a mechanism for each of the reactions.arrow_forward
- Place the steps of glycolysis in the order that they occur. Last step Answer Bank Glucose is phosphorylated by hexokinase. Glyceraldehyde-3-phosphate is converted to 1,3-bisphosphoglycerate. Aldolase cleaves the six-carbon sugar into two three-carbon sugars. Phosphoenolpyruvate is converted to pyruvate. 3-Phosphoglycerate is formed. Fructose-6-phosphate is phosphorylated by phosphofructokinase. First steparrow_forwardStep 7 of the citric acid cycle is shown. Which statement best describes what occurs in this step? CO₂ 1 CH || CH + H₂O CO₂ fumarate CO₂™ fumarase HO C-H CH₂ CO₂ malate A) Fumarate undergoes hydrogenation with hydrogens and electrons provided by the enzyme fumarase. B) Fumarate undergoes hydration with the aid of the enzyme fumarase. C) Fumarate undergoes hydrolysis with the aid of the enzyme fumarase. D) Fumarate undergoes reduction with the aid of the cofactor fumarase.arrow_forwardConsider the docosanoic acid, C21H43CO2H Label the alpha and beta Carbons. Draw each acyl CoA derived from this fatty acid. How many acetyl Co A molecules are formed by complete beta-oxidation? How many cycles of beta-oxidation are needed for complete oxidation? How many molecules of ATP are formed from the complete catabolism of this fatty acid? Show the complete computation. How many moles of ATP per gram of fatty acid is formed from the complete catabolism of the given fatty acid? What is the molar mass of the given fatty acid?arrow_forward
- Coenzyme A, NAD*, and FAD are coenzymes that are necessary for energy production. Classify each statement as describing coenzyme A, NAD+, or FAD. Coenzyme A NAD+ FAD Answer Bank accepts two hydrogen atoms when it is reduced derived from the vitamin pantothenic acid (B₂) accepts two electrons and one proton when it is reduced derived from the vitamin nicotinamide derived from the vitamin riboflavin (B₂) forms part of acetyl-SCOA, which is part of the citric acid cyclearrow_forwardThe following reaction constitutes the first step in the citric acid cycle. List all the reactants in this reaction? H₂O COO™ C=O || CH3-C-CoA Acetyl COA CH₂ COO™ Oxaloacetate HS-COA Citrate synthase O Citrate and HS-COA COO™ I CH₂ HO-C-COO CH₂ COO™ Citrate Water, Acetyl CoA, and HS-CoA O Oxaloacetate and Acetyl CoA Oxaloacetate, Acetyl CoA, and HS-COA O Oxaloacetate, Acetyl CoA, and Waterarrow_forwardLabel each reaction as an oxidation or reduction, and give the reagent, NAD + or NADH, that would be used to carry out the reaction.arrow_forward
- Mark any/all processes that are reductions. O FADH2 → FAD O hydrogenation of fats FAD FADH2 NAD* NADH NADH NAD*arrow_forwardPyruvate must be oxidized into acetyl-CoA in order to enter the citric acid cycle. Which of the following are required for this process per one molecule of pyruvate? ADP, FADH ATP, NADH ATP, NAD+ NAD+, coenzyme A CO2, NADHarrow_forwardHow many molecules of CO2 are obtained from the complete metabolism of one molecule of a 16-carbon saturated fatty acyl-CoA?arrow_forward
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