What molecules do NOT participate in Citric acid cycle? нс=0 H-C-OH но-с-н н-с-он н-с-он CH2OH 0=P-0. 0=P-0 ОН ОН Citrulline ОН ОН Oxaloacetate NH₂ NH₂
Q: Tell why the citric acid cycle is obligately aerobic.
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Q: fuel source under anaerobic conditions?
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Q: What would happen to the citric acid cycle if NADH and FADH2 were not reoxidized?
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A:
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- 6. Study the cycle below and answer the following 6.1 Provide a definition for the citric acid cycle 6.2 How many enzymatic reactions occur in this cycle 6.3 name THREE precursors for amino acid synthesis 6.4 state at which steps NADH and FADH₂ are produced Glucose-Acetyl-CoA Oxalbacolade Malate Fumarate 7 Succinate 2 Citrato Succinyl-CoA Aconitate 4 Isocrate Alpha-ketoglutarateThe reaction pictured is an oxidation-reduction reaction in the citric acid cycle in which the energy-carrier molecule NADH is generated. Identify which molecule in the reaction will be oxidized and which molecule will be reduced. Place a single answer choice in each box. COO- HO-C-H H-C-H COO- Malate NAD+ NADH + H+ Oxidized malate oxaloacetate COO- H-C-H ī COO- Oxaloacetate Reduced NADH NAD+coo CH,-č-CoA + H,0 Acetyl-CoA CoA CH, но-с-соо coo CH, Citrate čoo Oxaloacetate NADH Çoo CH, сн-соо сн-он NAD CH, Malate но-с-н Coo Isocitrate CoO NAD coo NADH + H CH + co, Fumarate HC Coo CH, CH, a-ketoglutarate FADH, NAD • COA NADH + H • co, FAD Succinate čoo CH, -CH, Succinyl-CoA CH, coo GTP + COA GDP• P. COA In step 4 of this cycle the a-ketoglutarate complex uses the following cofactors or coenzymes which are also used by O A. Zn", Mg**; pyruvate carboxylase В. FAD; dihydrolipoyl transacetylase TPP, COASH, Lipoic Acid; pyruvate carboxylase OP. TPP, COASH, Lipoic Acid; pyruvate dehydrogenase complex O E. biotin; pyruvate dehydrogenase complex
- The coenzyme NAD+ is required for which glycolytic reaction shown below? Oglyceraldehyde-3-P→ 1,3-bisphosphoglycerate glucose glucose-6-P fructose-6-P→ fructose-1,6-BP 2-phosphoglycerate → phosphoenolpyruvateDescribe each step of the metabolic pathway shown in the image below. Linoleic Acid Metabolism 18:2n-6, HO. Linoleic Acid 18:3n-6 он Gamma Linolenic Acid 20:3n-6 он Dihomo Gamma Linolenic Acid 20:4n-6 HO, Arachidonic Acid 22:4n-6 но, Docosatetraenoic AcidWhat would be a likely consequence if step 4 of the citric acid cycle no longer operated far from equilibrium, and instead occurred near equilibrium? the step would need to be coupled to ATP hydrolysis none of these possibilities are likely this step would no longer be a highly regulated step the reaction would no longer occur
- All of the following statements about the citric acid cycle are true except: O The citric acid cycle occurs in the cytoplasm of prokaryotes. O The citric acid cycle regenerates NAD+ and FAD. O The citric acid cycle involves one or more redox reactions. O The citric acid cycle is part of cellular respiration.Under anaerobic conditions, following the radiolabel at carbon-2 of pyruvate, in which molecule does the carbon label ultimately end up so that it can be taken up by the muscle cell and used for metabolism? Lactate C-2 Glucose C-2 and C-5 Acetyl- CoA C-2 Glucose C-1 and C-6 CO2 Pyruvate C-2Acetyi CoA Oxaloncetate CoA NADH NAD: Citrate Isccitrate Malate NAD co NADH Funaate »FADH; FAD a- Ketoglutarate Succinate NAD ATP Succinyt CuA NADH ADP - P, If you were told to add one of the eight citric acid cycle intermediates to the culture medium fo yeast growing in the laboratory, what do you think would happen to the rates of ATP and carbon dioxide production? (see the above figure) a. There would be no change in ATP production, but the rate of CO2 production would increase. b. The rates of ATP production and CO2 production would both increase, c. The rate of ATP production would increase, but the rate of CO2 production would decrease. d. The rates fo ATP and CO2 production would both decrease.
- What enzyme will not be used if the oxidative portion of the pentose phosphate pathway is operating to produce ribose 5-phosphate? Ribulose 5-phosphate isomerase 6-phosphoglucono-lactonase 6-phosphogluconate dehydrogenase TransaldolaseThe citric acid cycle is shown. The methyl carbon in acetyl CoA is labeled with C14C14 (shown in red). Identify which of the carbons in each intermediate will be labeled in the first round of the cycle by selecting the indicated carbon(s). Each question has multiple options, answering with only one option is incorrect. Which carbon(s) in α‑ketoglutarate will contain C14? 1 2 3 4 5 Which carbon(s) in succinyl‑CoA will contain C14? 1 2 3 4 Which carbon(s) in succinate will contain C14? 1 2 3 4 Which carbon(s) in fumarate will contain C14? 1 2 3 4 Which carbon(s) in malate will contain C14? 1 2 3 4 Which carbon(s) in oxaloacetate will contain C14? 1 2 3 4Which of the following doesn’t occur in the transition reaction? Pyruvic acid is oxidized Pyruvic acid is decarboxylated Pyruvic acid is reduced Acetic acid attaches to coenzyme A to form Acetyl CoA