Taking into consideration glycolysis, the pyruvate dehydrogenase complex and the citric acid cycle, how many NAD+ molecules are reduced from a single molecule of dihydroxyacetone phosphate? 4 NAD+ are reduced 5 NAD+ are reduced 8 NAD+ are reduced 10 NAD+ are reduced None of the above answers are correct
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Taking into consideration glycolysis, the pyruvate dehydrogenase complex and the citric acid cycle, how many NAD+ molecules are reduced from a single molecule of dihydroxyacetone phosphate?
- 4 NAD+ are reduced
- 5 NAD+ are reduced
- 8 NAD+ are reduced
- 10 NAD+ are reduced
- None of the above answers are correct
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- Given the following question on the image identify the following:1. Total number of glucose molecules entering glycolysis2. Total number of pyruvate molecules produces at the end of glycolysis3. Total number of mitochondrial NADH produced after pyruvate is acted upon pyruvate dehydrogenase complex4.Total number of CO2 released right after the pyruvate dehydrogenase complex reactionConsider that the shuttle system is maltase-aspartate shuttleThe citric acid cycle is mainly controlled at the first two NADH-producing reactions catalyzed by ___________ and ___________, respectively. Group of answer choices isocitrate dehydrogenase; alpha-ketoglutarate dehydrogenase complex pyruvate dehydrogenase complex; alpha-ketoglutarate dehydrogenase complex alpha-ketoglutarate dehydrogenase complex; malate dehydrogenase isocitrate dehydrogenase; malate dehydrogenase pyruvate dehydrogenase complex; isocitrate dehydrogenaseWhich of the following is true about comparing the α-ketoglutarate dehydrogenase complex and the pyruvate dehydrogenase complex? Group of answer choices They catalyze reactions that produce the exact same set of products They are both dehydrogenase complexes, but have very different structures They both catalyze reactions that oxidize NADH to NAD+ They both use the same E3 enzyme component Which of the following best describes stage 2 of the citric acid cycle? Group of answer choices ATP production by the electron transport chain production of acetyl CoA regeneration of oxaloacetate release of 2 carbons as carbon dioxide
- Taking into consideration glycolysis, the pyruvate dehydrogenase complex and the citric acid cycle, how many substrate level phosphorylation events occur from a single molecule of glucose? 6 substrate level phosphorylation events 4 substrate level phosphorylation events 3 substrate level phosphorylation events 2 substrate level phosphorylation events None of the above answers are correctDuring glycolysis, glucose is converted to pyruvate. Pyruvate then is converted to Acetyl coA and enters the citric acid cycle. Per one (1) glucose molecule that undergoes glycolysis and TCA cycle, complete the table below ATPS produced Products from glycolysis 1. ATP 2. NADH 3. _Pyruvate Equivalence in ATP ATP ATPS АТР Equivalence in ATP ATPS Products from TCA ATPS produced АТР 4. NADH 5. FADH2 6. GTP ATPS ATP ATPS ATP TOTAL ATP Produced 7. ATPThe completion of one cycle of the citric acid cycle oxidizing one acetyl CoA results in net... Group of answer choices 2 ATP produced consumption of 1 molecule of citrate consumption of 1 molecule of oxaloacetate production of 2 CO2 Which of the following is not a component of the citric acid cycle? Group of answer choices Oxaloacetate Succinyl CoA Malate Pyruvate Which of the following enzymes catalyzes an anaplerotic reaction? Group of answer choices citrate synthase pyruvate dehydrogenase complex malate dehydrogenase pyruvate carboxylase
- 1 2 points Order the following TCA cycle metabolites in the order they are produced in one turn of the citric acid cycle. Not all answers will be used. 2 1 4 3 TI Isocitrate Citrate Lactate Pyruvate Oxaloacetate Isocitrate Succinyl-CoA Aconitate 3-Phosphoglycerate -DOAfter pyruvate is formed, it must either be converted to another molecule to enter the citric acid cycle and ultimately produce ATP by utilizing the electron-transport chain, or go through alternate pathways to produce NAD Identify the products formed in the pathway of pyruvate and indicate whether NADH+H or NAD are produced under aerobic and anaerobic respiration Drag the appropriate labels to their respective targets. ▸ View Available Hint(s) Reset Help Alcohol (ethanol) Aerobic Respiration Anaerobic Respiration Acetyl coenzyme A Normal cell Yeast Lactate NAD+ produced NADH+H* produced Submit End products NAD*/ NADH+H* Previous Answers Request Answer Group 1 Group 2 Exercising Muscle Lactate Group 2 Group 1 Group 2Which of the following are required to begin the citric acid cycle? (select all that apply) Group of answer choices pyruvate oxaloacetate Acetyl CoA glucose pyruvate dehydrogenase What are the 2 main types of mechanisms involved in regulating the activity of the pyruvate dehydrogenase complex in response to the state of the cell/organism? (select all that apply) Group of answer choices isomerization hydration allosteric regulation induced fit covalent modification Which of the following are likely to negatively regulate (decrease) the conversion of pyruvate to acetyl CoA? (select all that apply) Group of answer choices High levels of ATP Increased PDH kinase activity Influx of Ca2+ ions Insulin signaling High levels of NADH
- Under anaerobic conditions, pyruvate will be converted to lactic acid. Why does this occur? To convert NADH to NAD* to feed back into glycolysis To supply the glycolysis reaction glyceraldehyde-3-phosphate to 1,3-bisphosphoglycerate with needed electrons in the form of NADH Because lactic acid can be converted to glucose to feed back into glycolysis Because lactic acid is needed to resupply glycolysis with electrons OArsenate can replace inorganic phosphate in the reaction catalyzed by glyceraldehyde-3-phosphate dehydrogenase, causing glyceraldehyde-3-phosphate to be directly converted to 3-phosphoglycerate(NADH is still formed). Which of the following is absolutely true in case of arsenate poisoning -Glycolysis will stop - Glycolysis will still proceed with no net ATP gain - Glycolysis will not generate any form of energy - Glycolysis will still proceed, but with a net consumption of ATP - Glycolysis will proceed with lactate as end productThere are eight chemical reactions that occur in the citric acid cycle process. The reactions of the citric acid cycle are shown in the figure below. acetyl-coenzyme A 0 CH₂-C-CoA HO-CH Reaction 7 O malate CH₂ CH || CH fumarate FADH₂ Reaction 6 FAD H+ + NADH NAD+ 1,0 H₂C CH₂ CH₂ Reaction 8 succinate ADP 0=C GTP CH₂ oxaloacetate Reaction 5 H-COA GDP ATP H₂O Reaction 1 C Reactions of the Citric Acid Cycle CH₂ CH₂ H-COA 0=C 1 CoA succinyl-CoA H+ HO-C Reaction CO₂ с CH₂ NADH CH₂ citrate Reaction 2 H-COA Reaction 3 CO₂ I CH₂ T CH₂ 0=C NAD+ HO–CH a-ketoglutarate CH, CH isocitrate NAD+ H+ + NADH In chapters 9 and 10, you were introduced to several classes of organic reactions. These classes include esterification, decarboxylation, hydration reactions, dehydration of alcohols, oxidation of alcohols, oxidation of aldehydes, reduction of aldehydes, and reduction of ketones. Find at least one of these reaction classes in the citric acid cycle. List the reaction number and the reaction. Write a…