Consider the complete oxidation of one mole of simple TAG containing arachidic acid residues (20:0).1. For one mole of the fatty acid residue, determine the following:a. ATP yield obtained from the oxidation of acetyl CoA entering the TCA cycle and ETCb. ATP yield obtained from NADH coming from the complete ß-oxidation of the fatty acid residuec. ATP yield obtained from FADH₂ coming from the complete B-oxidation of the fatty acid residued. net ATP yield of ATP in the complete oxidation of the fatty acid residue2. What is the net ATP yield for the complete oxidation of all the fatty acid residues of the simple TAG?(Note: glycerol backbone is not included)

Simple triacylglycerols contain the same type of fatty acid residues in all three carbons of…

Answered: Consider the complete oxidation of one…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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What are the direct products of b oxidation of a fully saturated, straight-chain acyl-CoA of 13 carbons? How many ATP molecules can be obtained from complete oxidation of this compound?
2.1
Another biochemical study from another patient reveals a 100X increase in the KM value for the enzyme succinyl-CoA synthetase for this individual (only isozyme expressed). What metabolic and physiological consequences would you predict resulting from this enzymatic change?
Order the cofactors based on their use in the mechanism of the a-etogluterate dehydrogenase complex. 1. Stabilizes a carbanion due to decarboxylation 2. Allows for the splitting of the carbon skeleton from the electron pair generated in a redox reaction 3. Enzyme bond electron carrier that is part of dihydrolipoyl dehydrogenase 4. Final electron acceptor in the overall reaction catalyzed by this complex 1 2 3 4 answer choices: lipoamide, biotin, 2 Fe - 2S cluster, TPP, NAD+, FAD
Calculate the total number of ATP that can be generated from the ß-oxidation of paulinic acid? ОН 1. How many ATP expended for activating fatty acid to fatty acyl-CoA? How many rounds of beta oxidation? How many FADH2 per round of beta oxidation? Is there any point in the beta oxidation of an unsaturated fatty acid where we skip over FADH, production? How many FADH, total from beta oxidation? How many NADH per round of beta oxidation? How many NADH total from beta oxidation? How many acetyl-CoA are produced through beta oxidation? 6. 2. 3. 4. 5. How many NADH and FADH, are produced per acetyl-CoA in the citric acid cycle? How many NADH total from all acetyl-CoA running through the citric acid cycle? How many FADH, total from all acetyl-CoA running through the citric acid cycle? How many ATP are produced per acetyl-CoA in the citric acid cycle? How many ATP total from all acetyl-CoA running through the citric acid cycle? How many ATP per NADH,? 9. 7. 1. 8. How many ATP per FADH,? 10.…
Two pathways that yield NADPH in the cytosol, needed for fatty acid biosynthesis, are: (1) (2) The correct repeated sequence of 4 types of chemical reactions involved in the fatty acid biosynthesis are: (1) , (2) (3) (4) Which molecule allosterically activates the rate-limiting enzyme of the fatty acid biosynthesis? Tor F Mammals can synthesize 18:3 (469.12) from, 18:2 (4¹2) What is the source of methyl group in the formation of phosphatidylcholine from phosphatidylethanolamine? and In mammals (strategy-II), phosphatidylcholine is yielded by the condensation of these two molecules. The two precursors for the synthesis of sphingosine in sphingolipids are:
Q) You are following the metabolism of aspartate that is equally labeled on all 4 carbons. Following a transamination aspartate is converted into oxaloacetate. Assuming the resulting Oxaloacetate is used as the substrate for the TCA cycle answer the following questions: a) Describe ALL the oxaloacetate molecules that would result from the first turn of the TCA cycle. b) Briefly describe how there is still label detected on the carboxylic acids even though they were removed as CO2 during the first turn of the cycle. (2 sentences MAX)
The following nutrient molecule is digested and transported to a cell where it undergoes further catabolism: но c-(CH;)14-CH3 di In the table below, list the important products of the complete B oxidation of this molecule. • In the first column of the table, write the chemical formula, name, or standard biochemical symbol for a product molecule. In the second column, write the total number of these molecules produced. • Only list the Important products, including (1) molecules with any of the carbon atoms that were in the original molecule, (2) energy storage molecules (like ATP), and (3) newly oxidized or reduced coenzymes. List each product molecule on a separate row. You can add more rows if you need them. • Be sure you write the number of product molecules formed by the complete B oxidation of the molecule above. • Do not include the products of any catabolic activity that happens before or after B oxidation, including any necessary activation. If the molecule contains small parts…
25. The AG" values for the two reactions are given. 1. 2. oxaloacetate + acetyl-CoA + H₂O → citrate + COASH oxaloacetate + acetate → citrate Enzymes for reactions 1 and 2 are citrate synthase and citrate lyase, respectively. Determine the AG" for the hydrolysis of acetyl-CoA acetyl-CoA + H₂O acetate + COASH + H+ plane een isoimorfbold bns (94) opg Vp1903 9911 AG¹⁰ ? AGO = -32.2 kJ/mol AG"=-1.9 kJ/mol
The enzymatic activity of PFK1 is generally measured by set- ting up a coupled enzyme assay system whereby aldolase, triose phos- phate isomerase, and glycerol-3-phosphate dehydrogenase are added to the assay mixture. For the latter enzyme, NADH is added and its change in concentration is readily monitored at 340 nm. Write the chain of reactions catalyzed by these enzymes using structural formulas, label substrates and products, and explain why the coupled en- zyme assay system leads to oxidation of NADH. While the chain of reac- tions is similar to those in glycolysis, there is a critical difference because of the dehydrogenase enzyme. Describe how this enzyme causes the chain of reactions to differ from those in glycolysis.
Consider a 24:1 △cis-9 fatty acid in the mitochondrion. For each fatty acid given, determine the following. 1. Gross ATP from b-oxidation cycles 2. Gross ATP from acetyl CoA produced 3. Gross ATP from conversion of propionyl CoA (if applicable) 4. Total number of ATP deducted 5. Total net ATP
For each fatty acid: [1] How many molecules of acetyl CoA are formed from complete catabolism? [2] How many cycles of ß-oxidation are needed for complete oxidation? a. oleic acid (C18H340₂) --- molecules of acetyl CoA [2] ___ cycles [1] b. erucic acid (C22H4202) molecules of acetyl CoA [2]___ cycles

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