Acyl CoA Synthetase is an enzyme that requires ATP to function. Why can acyl-CoA synthetase make...
Acyl CoA Synthetase is an enzyme that requires ATP to function. Why can acyl-CoA synthetase make ATP, when it consumes ATP?
Homework Answers
The enzyme acetyl CoA synthetase is required for the synthesis of acetyl CoA. In presence of this enzyme CoA and acetate reacts to form acetyl CoA. But this reaction requires energy means ATP. Now the formed Acetyl CoA participates in the TCA cycle or krebs cycle. In the TCA cycle, the stored energy in the body in the form of carbohydrate, protein, fat undergoes oxidation to release ATP. So ATP is released.
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Acyl CoA Synthetase is an enzyme that requires ATP to function.
Why can acyl-CoA synthetase make...
True or false? True False The function of the enzyme acyl CoA synthetase is the ATP-dependent coupling...
True or false? True False The function of the enzyme acyl CoA synthetase is the ATP-dependent coupling of fatty acids to CoA. True False Unsaturated fatty acids contain zero alkene bonds. True False The brain uses ketones instead of glucose for ATP production during long-term fasting. True False A biotin-deficient diet may lead to an increase of cytosolic acetyl CoA. True False Untreated, chronic ketone body production will raise blood pH levels. True False The availability of the metabolite malate determines whether acetyl CoA, made from...
An acyl-CoA is an activated or "high energy" molecule. Why? a) Because the acyl group can...
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Which of the following coenzymes/cofactors are required for the function of the enzyme, hydroxyl acyl CoA...
Which of the following coenzymes/cofactors are required for the function of the enzyme, hydroxyl acyl CoA dehydrogenase? O FAD o Coenzyme A O NAD O zinc
1. An enzyme that phosphorylates nucleotides is c. phosphofructokinase b. phosphorylase d. succinyl-CoA synthetase a. malic...
1. An enzyme that phosphorylates nucleotides is c. phosphofructokinase b. phosphorylase d. succinyl-CoA synthetase a. malic enzyme 2. An example of a nucleotide-regulated allosteric enzyme is a. lactonase c. pyruvate kinase b. alcohol dehydrogenase d. enolase 3. Adenylate kinase makes ATP and AMP b. ATP only a. c. ADP and AMP d. AMP only
QUESTION 4 The rate limiting enzyme for cholesterol synthesis is A Acyl-CoA-cholesterol acyl transferase (ACAT) B....
QUESTION 4 The rate limiting enzyme for cholesterol synthesis is A Acyl-CoA-cholesterol acyl transferase (ACAT) B. HMG-CoA Lyase C. HMG-CoA Reductase D. HMG-CoA Synthase
Enzymes. The enzyme tryptophan-tRNA synthetase binds to three different substrates, with the following Michaelis constants: ATP...
Enzymes. The enzyme tryptophan-tRNA synthetase binds to three different substrates, with the following Michaelis constants: ATP (KM = 50µM), tryptophan (KM = 0.5µM), and tRNATrp (KM = 1.5µM). - A) Which substrate binds to the enzyme with highest affinity? _________________________ - B) When is the enzyme mostly saturated (i.e., mostly bound to all three substrates)? [Circle one number (1 – 3).] 1) 1 µM ATP, 10 µM tryptophan, and 100 µM tRNATrp 2) 100 µM ATP, 1 µM tryptophan, and...
An activated fatty acid (acyl-CoA) can be transported into the mitochondria for b-oxidation or remain in...
An activated fatty acid (acyl-CoA) can be transported into the mitochondria for b-oxidation or remain in the cytosol for lipogenesis to produce a triacylglycerol. What regulates the fate of this acyl-CoA? A. the amount of acyl-CoA in the mitochondria B. the amount of acyl-carnitine in the mitochondria C. the amount of NADH in the cytoplasm D. the amount of malonyl CoA in the cytoplasm E. the amount of acetyl-CoA in the cytoplasm
P11 Studies of the binding of ATP to the enzyme tetrahydrofolate synthetase were conducted at T-293...
P11 Studies of the binding of ATP to the enzyme tetrahydrofolate synthetase were conducted at T-293 K and appear in the following table, where CTp is in molar units. 0.25 0.50 1.0 1.5 2.0 2.5 6.67 X 1.43 X 3.33 x 6.00 x 1.00x 1.67x 3X (M) 10-6 10-5 10-510 10-4 10-4 10-4 a. From a Scatchard plot, determine K293 and N. b. Assume K293 K310 . Using the information from the Scatchard plot of part (a), calculate the standard...
12. Which enzyme catalyzes the reaction shown? Oo 9% a. succinyl-CoA synthetase b. succinate dehydrogenase c....
12. Which enzyme catalyzes the reaction shown? Oo 9% a. succinyl-CoA synthetase b. succinate dehydrogenase c. pyruvate dehydrogenase d、a-ketoglutarate dehydrogenase 13. Which of the reactions of the citric acid cycle requires FAD as a coenzyme? a. the conversion of isocitrate to a-ketoglutarate b. the conversion of citrate to isocitrate c. the conversion of succinate to fumarate d. the conversion of malate to oxaloacetate 14. Another name for Complex I in the electron transport chain is a. cytochrome c oxidase. b....
(a.) An enzyme that requires a nucleotide triphosphate such as ATP to couple with an unfavorable...
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Which of the following coenzymes/cofactors are required for the function of the enzyme, hydroxyl acyl CoA dehydrogenase? O FAD o Coenzyme A O NAD O zinc
1. An enzyme that phosphorylates nucleotides is c. phosphofructokinase b. phosphorylase d. succinyl-CoA synthetase a. malic enzyme 2. An example of a nucleotide-regulated allosteric enzyme is a. lactonase c. pyruvate kinase b. alcohol dehydrogenase d. enolase 3. Adenylate kinase makes ATP and AMP b. ATP only a. c. ADP and AMP d. AMP only
QUESTION 4 The rate limiting enzyme for cholesterol synthesis is A Acyl-CoA-cholesterol acyl transferase (ACAT) B. HMG-CoA Lyase C. HMG-CoA Reductase D. HMG-CoA Synthase
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12. Which enzyme catalyzes the reaction shown? Oo 9% a. succinyl-CoA synthetase b. succinate dehydrogenase c. pyruvate dehydrogenase d、a-ketoglutarate dehydrogenase 13. Which of the reactions of the citric acid cycle requires FAD as a coenzyme? a. the conversion of isocitrate to a-ketoglutarate b. the conversion of citrate to isocitrate c. the conversion of succinate to fumarate d. the conversion of malate to oxaloacetate 14. Another name for Complex I in the electron transport chain is a. cytochrome c oxidase. b....
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