64 Consider docosanoic acid, C2H43 CO₂H.a. Label the x and ß carbons.b. Draw the acyl CoA derived from this fatty acid.c. How many acetyl CoA molecules are formed by completeB-oxidation?d. How many cycles of ß-oxidation are needed for completeoxidation?e. How many molecules of ATP are formed from the completecatabolism of this fatty acid?Required:

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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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The sources of the three (3) carbons in malonyl-Coa is/are: a. 1 C from C02 and 2 C from acetyl-CoA b. 1 C from HCO3- and 2 C from acetyl-CoA c. 1 C from biotin and 2 C from acetyl-CoA d. All three C from acetyl-CoA
State the steps of ketone body formation, starting with two acetyl CoA. Please make sure to state all the enzymes and co-factors for each reaction.
which statement is true for the following reaction?
Propose a mechanism for the transfer of an acetyl group from acetyl CoA to the amino group of lysine.
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
A. List all the materials required for beta-oxidation of fatty acids. How does this process differ from the Biosynthesis of fatty acids? B. Outline the pathway involved in the synthesis of cholesterol from six-carbon intermediate Mevalonate. C. Describe all the stages involved in the urea cycle (Transmination, Ammonia Transport, and stages of the urea cycle).
The following reaction, the last reaction in beta-oxidation, is an example of a: Enzyme Enzyme-H S-CoA S-COA H2C H3C CoA s–CoA C H2 CH2 R S-COA S-COA S-COA O A. Nucleophilic acyl substitution O B. Electrophilic addition OC. Nucleophilic addition D. Aldol condensation O E. Hydrohalogenation
For saturated fatty acids, these reactions can continue as you have drawn until all the carbons of the fatty acid have been oxidized to acetyl-CoA. What is problematic about an unsaturated fatty acid, such as C16:cis-9?
(8) B-ketothiolase is a multifunctional enzyme in lipid catabolism. Which of the following is NOT one of its functions? (A) It catalyzes the release of (2) acetyl CoA from acetoacetyl CoA during ketolysis. (B) It removes an acetyl CoA from the fatty acyl chain during B-oxidation. (C) It forms acetoacetate by removing acetyl CoA from HMG CoA during ketogenesis. (D) It condenses (2) acetyl CoA molecules to form acetoacetyl CoA during ketogenesis. (9) What is HMG-COA, in the context of fatty acid catabolism? (A) a product of fatty acid oxidation (B) a ketone body made in liver cells (C) a 6-carbon precursor to the acetoacetate ketone body (D) a 4-carbon precursor to the acetoacetate ketone body (E) a product formed when the B-hydroxybutyrate ketone body is oxidized in brain cells (10) Which of the following symptoms might you expect to see in a patient with defective acyl CoA dehydrogenase under fasting conditions? (A) slowed gluconeogenesis in liver (B) hypoglycemia (C) elevated glycogen…
Discuss how the isozymic forms of acetyl CoA carboxylase regulate fatty acid metabolism. Explain the reciprocal regulation of fatty acid production and breakdown, as well as the numerous mechanisms that are used to accomplish this control.
For the pyruvate dehydrogenase complex, please identify the oxidation states of every atom and prove whether the reaction is oxidized or not Pyruvate --> Hydroxyethyl TPP B. Hydroexythl TPP --> Acetyl Lipoylysine C. Acetyl Lipoylysine --> Acetyl-CoA

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Consider docosanoic acid, C2H43CO₂H. a. Label the x and ß carbons. b. Draw the acyl CoA derived from this fatty acid. c. How many acetyl CoA molecules are formed by complete B-oxidation?