How many cycles of B-oxidation are necessary to completely oxidize 3 molecules stearic acid (C18H3602)? A. 24 B. 18 C. 27 D. 21
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How many cycles of B-oxidation are necessary to completely oxidize 3 molecules stearic acid (C18H3602)?
A. 24
B. 18
C. 27
D. 21
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- Five coenzymes are required by a-ketoglutarate dehydrogenase, the enzyme in the citric acid cycle that converts a-ketoglutarate to succinyl-CoA.a. Identify the coenzymes.b. Propose a mechanism for the reaction.How many cycles of B-oxidation are necessary to completely oxidize 3 molecules stearic acid (C18H3602)?a. 24b. 180 27O 21Upon considering the complete oxidation of one mole of fatty acyl (CoA) of an arachidic acid (20:0). Answer the following lettersa. Rounds of beta oxidationb. total no. of acety CoA producedc. total no. of NADH produced from all rounds of beta oxidariond. total no. of FADH2 produced from all rounds of beta oxidation
- Consider the docosanoic acid, C21H43CO2H a. Label the a and B carbons b. Draw the acyl CoA derived from this fatty acid c. How many acetyl CoA molecules are formed by complete B-oxidation? d. How many cycles of B-oxidation are needed for complete oxidation? e. How many molecules of ATP are formed from the complete catabolism of this fatty acid?If glycerol-3-phosphate shuttle is active, calculate the number of ATP produced from the complete oxidation of: a. cerotic acidb. heptadecanoic acidc. palmitoleic acidCharacterize, in terms of number of carbon atomspresent, each of the following citric acid cycle changesas (1) a C4 to C4 change, (2) a C4 to C6 change, (3) a C5to C4 change, or (4) a C6 to C5 change.a. Oxaloacetate to citrateb. a-Ketoglutarate to succinyl CoAc. Fumarate to malated. Succinyl CoA to succinate
- 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-CoAFive coenzymes are required by a-ketoglutarate dehydrogenase, the enzyme in the citric acid cycle that converts a-ketoglutarate to succinyl-CoA.a. Identify the coenzymes.b. Propose a mechanism for the reaction. A-ketoglutarate dehydrogenase A-ketoglutarate succinyl-CoAOO OO O−O O− −O SCoA + CO2Consider docosanoic acid C12H43CO2H a. Label the alpha and beta Carbons. Show the beta-oxidation in an EXPANDED structure. b. Draw each acyl CoA derived from this fatty acid. c. How many acetyl Co A molecules are formed by complete beta-oxidation? d. How many cycles of beta-oxidation are needed for complete oxidation? e. How many molecules of ATP are formed from the complete catabolism of this fatty acid? Show the complete computation. f. How many moles of ATP per gram of fatty acid is formed from the complete catabolism of the given fatty acid? g. What is the molar mass of the given fatty acid? Solution: Show here the complete computations, [from a to e]
- Toxins that occur in certain mushrooms block β oxidation in humans. Explain why ingesting the mushrooms leads to heart palpitations and severe hypoglycemia (low blood sugar).A 28-year-old man experiences prolonged apnea following the administration of succinylcholine for tracheal intubation. A hereditary deficiency of which of the following enzymes is most likely responsible for this condition? Answers A-E A Acetylcholinesterase B Butyrylcholinesterase C Cytochrome P4503A D Glucose-6-phosphate dehydrogenase E Monoamine oxidaseidentify the reactions of the citric acid cycle that provide reducing power for the electron-transport chain a. conversion of succinyl-CoA to succinate b. conversion of fumarate to malate c. conversion of succinate to fumarate d. conversion of malate to oxaloacetate