For each fatty acid: [1] How many molecules of acetyl CoA are formed from complete catabolism? [2] How many cyeles of B-oxidation are needed for complete oxidation? a. linoleic acid (C18H32O2) [1] molecules of acetyl CoA 12] cycles b. oleic acid (C18H3¾02) [1] molecules of acetyl CoA [2] eycles
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A:
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A:
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- Study Figure 19.18 and decide which of the following statements is false. Pyruvate dehydrogenase is inhibited by· NIADH. Pyruvate dehydrogenase is inhibited by AΤΡ. Citrate synthase is inhibited by NADH. Succinyl-CoA activates citrate synthase. Acetyl-CoA activates pyruvate carboxylase.Complete the table below. Consider docosanoic acid (C21H43CO2H) Questions Solutions Answers a. Label the alpha and beta carbons. b. Draw the acetyl 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?CHOOSE THE CORRECT LETTER 1.What are the B-oxidation products of lauric acid (C12H2402), a major component of coconut oil?A.6 acetyl-CoA, 6 NADH, 6 FADH2B. 6 acetyl-CoA, 5 NADH, 5 FADH2C. 5 acetyl-CoA, 6 NADH, 6 FADH2D. 5 acetyl-CoA, 5 NADH, 5 FADH2 2.What is the mechanism of ATP synthesis in glycolysis?A. substrate level phosphorylationB. reductionC. oxidationD. oxidative phosphorylation 3.Which of the following enzymes need ATP as a substrate in the reaction?A.phosphoglycerate kinaseB. phosphofructokinaseC. pyruvate kinaseD.glyceraldehyde-3-phosphate dehydrogenase
- How many acetyl CoA molecules are produced in one cycle of beta oxidation? How many cycles would it take to catabolize a stearic acid molecule (a fatty acid, [18:0]) into acetyl Co A units? a)How many acetyl CoA molecules would be produced? b) How many reduced nucleotides would be produced? c) If a molecule of glucose produces a net 32 ATP when completely catabolized, which do you think will produce more energy, one molecule of glucose or one molecule of stearic acid? Justify your answer.Complete the table below. Consider docosanoic acid (C21H43CO2H) Questions Show complete solutions Answers a. How many acetyl CoA molecules are formed by complete B-oxidation? b. How many cycles of B-oxidation are needed for complete oxidation? c. How many molecules of ATP are formed from the complete catabolism of this fatty acid?Consider the fatty acids: (a) Arachidic acid (C20H40O2); molar mass = 312.5 g/mol) (b) Palmitoleic acid(C16H30O2); molar mass = 256.4 g/mol). i. How many cycles of β -oxidation are needed for complete oxidation?ii. How many molecules of acetyl CoA are formed from its complete catabolism?iii. Calculate the number of molecules (moles) of ATP formed (net) by the completecatabolism of each fatty acid (show your calculation).iv. Calculate number of moles of ATP formed per gram of each fatty acid metabolized.
- If the w-carbon atom of a fatty acyl CoA molecule with a C12 chain is labeled with C14, how manyrounds of β-oxidation are required to produce a radioactively labeled acetyl CoA? one two four five How many molecules of glucose are required to provide the carbon for the synthesis of onemolecule of tripalmitoylglycerol? 4.5 8.5 10.5 12.5 Need more informationWater production from fatty acid oxidation is a survival mechanism in animals where water is scarce. Cells oxidize palmitoyl-CoA to produce water. If an animal has 5.000 kg of palmitoyl-CoA available for fatty acid oxidation, how many kilograms of water could the animal produce from that palmitoyl-CoA? The chemical formula for palmitoyl-CoA is C37H66N7O17P3S.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?
- Considering the complete oxidation of an 18-C fatty acid. Give the answer to the following question.a. What is the total number of NADH produced in TCA if all of the acetyl CoA enters the cycle? b. What is the total number of FADH2 produced in TCA if all the acetyl CoA enters the cycle?c. How much ATP is produced in the overall oxidation?Give answer of 1,2,3, MCQ's 1. Which of the following statements about delto-ALA (amino amino ievulinate Synthases are FALSE? A It catalyzes the rate limiting step in the pathway of heme synthesis B. It is allosterically activated by heme C. It synthesizes delta-ALA from glycine and acetyl-CoA D. It has a decreased activity in case of vitamin 87 deficiency E. Heme influences the concentration of delta-ALA synthase in the red blood cell precursor. 2. Select the correct statements about heme degradation: A. It involves the removal of Fe2+ from heme molecule with the generation of protoporphyrin B. During heme degradation, the protoporphyrin ring is opened and CO is released C Bilirubin is conjugated with UDP glucuronic in the spleen D. The conjugated bilirubin is transported in plasma by albumin E. The stercobilin that arises by the oxidation of urobilinogen confers the characteristic color of the feces 3. Which of the following represent possible consequences of an intense hemolysis…How many molecules of acetyl-CoA result from catabolism of 1 molecule of glyceryl trilaurate? (Hint: See Worked Example 24.3 and don’t forget glycerol.)