How many ATP molecules can be synthesized from four Acetyl CoA molecules if all four enter the Kreb's Cycle? Assume the energy yielding products enters the ETC.
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How many ATP molecules can be synthesized from four Acetyl CoA molecules if all four enter the Kreb's Cycle? Assume the energy yielding products enters the ETC.
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- Complete oxidation of a 16-carbon fatty acid can yield 129 molecules of ATP Study Figure 19.2 and determine how many ATP molecules would be generated if a 16-carbon fatly acid were metabolized solely by the TCA cycle, in the form of S acetyl-CoA molecules.How many protons are shuttled from the matrix to the intermembrane space by the products of the Kreb's Cycle as one molecule of acetyl-CoA and oxaloacetate are converted to one molecule of fumarate?The tricarboxylate transport system supplies cytosolic acetyl-CoA for palmitate synthesis. What percentage of the NADPH required for palmitate synthesis is thereby provided?
- Fourteen NADPH molecules are required to produce one molecules of palmitic acid from acetyl CoA. Substantiate this statement by referring to the enzymatic activities involved in reduction steps during fatty acid synthesis and the number of cycles required to produce palmitic acid from acetyl CoA. How many molecules of ATP is required for the synthesis of palmitic acid from cytosolic acetyl-CoA?The conversion of pyruvate to Acetyl-CoA involves an oxidative decarboxylation. Correct the path of the electrons through this mechanism: Pyruvate -> NAD -> lipoamide -> FAD -> TPPHow many ATP molecules result from the processing of 10 acetyl CoA molecule through the common metabolic pathway?
- Identify the Krebs cycle enzyme that consumes a 3-carbon substrate molecule, producing a 2- carbon product molecule (attached to acetyl-CoA), along with NADH, and one molecule of CO2. succinyl CoA synthetase a-ketoglutarate dehydrogenase pyruvate dehydrogenase isocitrate dehydrogenase malate dehydrogenaseFor arachadic acid calculate the total number of FADH2 and NADH molecules, respectively, that are formed in the B-oxidation and subsequent utilization of CoA in the TCA cycle. Reference figure 23.16 when calculating these values. O 19, 39 14, 26 2,5 12, 12Yeasts and plants can use acetyl-CoA as a carbon source by omitting which two steps in the TCA cycle? O Citrate isocitrate; isocitrate → a-ketoglutarate O Isocitrate → a-ketoglutarate; a -ketoglutarate → succinyl-CoA - O Oxaloacetate citrate; malate → oxaloacetate O Succinyl-CoA succinate; succinate → fumarate
- How many total moles of ATP are created in a cell with an ATP synthase with 8 c subunits for every 28 moles of glucose that is completely oxidized in glycolysis and the Krebs cycle? Assume that NADH is transported by the malate aspartate shuttle.In the first step of the TCA cycle the acetyl group of acetyl-CoA is transferred to oxaloacetate to produce citrate. Where will the carbonyl carbon of that acetyl group be after the first CO2 is expelled? Group of answer choices The first carbon of α-ketoglutarate The last carbon of α-ketoglutarate The fourth carbon of α-ketoglutarate The third carbon of α-ketoglutarateBelow is an image of the Krebs cycle: acetyl-CoA oxaloacetate COASH H20 NADH NAD* H20 malate citrate fumarate isocitrate FADH2 NAD* CO2 FAD АТР NADH + ADP succinate GTP NAD+ a-ketoglutarate H20 GDP NADH + CO2 COASH succinyl CoA COASH Consider the conversion of succinate to fumarate, which is coupled with the production the electron carrier FADH2. If this reaction was NOT coupled with the production of FADH2 (and only catalyzed the conversion of succinate to fumarate), how would this impact ATP production through cell respiration? OATP production would stop because no high energy electron carriers would be produced ATP production would still occur, but there would be a much lower ATP yield because a large number of electron carriers are no longer being made ATP production would stop because without FADH2 we will no longer have electrons moving through the electron transport chain ATP production would still occur, but there would be a slightly lower ATP yield because a small number of…