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- Complete the balanced equation for the overall reaction. Select answer choice in between brackets. Sucrose + [2 Pi, 4Pi]+[4 ADP, 2 ADP, 4 ATP, 2ATP]+[2 NAD+, 4 NAD+, 6 NAD+]+[H2O, 5 H2O, 3 H2O] --> [2 cirate, 2 oxaloacetate, 2 pyruvate, 2 acetyl-coA]+[4 ADP, 2 ADP, 4 ATP, 2ATP] + [2 NAD+, 4 NAD+, 6 NAD+] + [2H+, 8H+, 6 H+, 4 H+, 10 H+] Does the commercial process require aerated culture medium—that is, is this a fermentation or an aerobic process? A. a fermentation process, because A. niger cells must use O2O2 to continuously regenerate NAD+ B. an aerobic process, because A. niger cells must use O2O2 to continuously regenerate NAD+ C. a fermentation process, because A. niger cells cannot use O2O2 to continuously regenerate NAD+ D. an aerobic process, because A. niger cells cannot use O2O2 to continuously regenerate NAD+Complete the balanced equation for the overall reaction by selecting an answer choice in the brackets. Sucrose + [2 Pi, 4Pi]+[4 ADP, 2 ADP, 4 ATP, 2ATP]+[2 NAD+, 4 NAD+, 6 NAD+]+[H2O, 5 H2O, 3 H2O] --> [2 cirate, 2 oxaloacetate, 2 pyruvate, 2 acetyl-coA]+[4 ADP, 2 ADP, 4 ATP, 2ATP] + [2 NAD+, 4 NAD+, 6 NAD+] + [2H+, 8H+, 6 H+, 4 H+, 10 H+] Does the commercial process require aerated culture medium—that is, is this a fermentation or an aerobic process? A. a fermentation process, because A. niger cells must use O2O2 to continuously regenerate NAD+ B. an aerobic process, because A. niger cells must use O2O2 to continuously regenerate NAD+ C. a fermentation process, because A. niger cells cannot use O2O2 to continuously regenerate NAD+ D. an aerobic process, because A. niger cells cannot use O2O2 to continuously regenerate NAD+For the following reaction[FAD] + 2 cyt c (Fe 2+) + 2 H+ —> [FADH2] + 2 cyt c (Fe+3)determine which of the redox couples is the electron acceptor and which is the electron donor under standard-state conditions, calculatethe value of ΔE and determine the free energy change for the reaction.
- Question 54 Electron transport and chemiosmosis (is the movement of ions across a semipermeable membrane, down their electrochemical gradient.) occur during both aerobic cell respiration and photosynthesis. What is the purpose of electron transport and chemiosmosis in both cell respiration and photosynthesis? O To create sugar molecules from oxygen gas O To create water molecules from carbon dioxide gas OTo use the energy released from slowing electrons to build ATP OTo usc he energy released from slowing electrons to create light(i) During the Pyruvate Decarboxylase (PDC) catalysed reaction, a covalent coenzyme intermediate is formed. On the skeleton of the covalent coenzyme intermediate below draw the appropriate double bonds, charges, and electron pairs to illustrate the two resonance forms of this intermediate. Name each form in the boxes provided. HO S R' N -R HO S R' N -RWrite the balanced reaction catalyzed by phophoenolpyruvate carboxylase (P PC). Remember to add any cofactors, and to draw the structure formulas (a line-bond representation is fine) for the main substrate and product of the reaction.
- With H2 as electron donor, why is reduction of Fe3+ a morefavorable reaction than reduction of fumarate?Which of the compounds shown below exhibit a high negative free energy of hydrolysis equal to or larger than the free energy of hydrolysis for the phosphoanhydride of ATP? (Choose all that apply) В Α HPΗ Ho HO HO H2N-CH-C CH2 H2N-CH-C CH2 CH2 H2N-CH-Ö CH2 C CH2 D E O A O B O E O=p-00 O=p-00 O=-00 O=0-00 O=L-00A table of standard state free energies is shown below. For the reaction: Creatine phosphate + ADP----> Creatine + ATP the free energy under standard state conditions is kJ/mole. TABLE 14.1 Standard free energies of hydrolysis of some phosphorylated compounds Compound kcal mol kJ mol - 14.8 Phosphoenolpyruvate 1,3-Bisphosphoglycerate Creatine phosphate ATP (to ADP) Glucose 1-phosphate Pyrophosphate Glucose 6-phosphate -61.9 -11.8 - 49.4 - 10.3 -43.1 - 7.3 - 30.5 - 20.9 - 19.3 - 5.0 - 4.6 – 3.3 -13.8 Glycerol 3-phosphate – 2.2 - 9.2 A. +12.6 В. +73.6 С.-3.0 D. -12.6 ОЕ.-73.6
- Write out the full redox reaction that happens when both of these reactions are added to the same reaction where there is 1M concentrations of each reactant and products, pH7, and temeprature is 290K. Identify which compounds will be reduced and which compounds will be oxidized. redox reaction 1: Pyruvate¯ + 2H+ + 2e¯ → lactate¯ E'o(V) = -0.185 redox reaction 2: NAD+ + H+ + 2e¯ → NADH E'o(V) = -0.320Phosphocreatine (G0ʹ = -43.1 kJ/mol) has a higher phosphoryl group transfer potential than ATP (G0ʹ = -30.5 kJ/mol). However, under certain physiological conditions, phosphoryl group is transferred from ATP to creatine. Explain this discrepancy. Many biochemical conversions are carried out via multi-step pathways although similar conversions can be done in an organic chemistry lab in fewer steps. Explain why energetically it is reasonable to use multiple steps in biochemical conversions. What are isozymes? Humans contain several isozymes of hexokinase. Why does the body need several isozymes of hexokinase? 1,3-bisphosphoglycerate is used to produce ATP. Which of the two phosphates of 1,3- bisphosphoglycerate is transferred to ADP to make ATP. Explain why it is this specific phosphate and not the other one. Triose phosphate isomerase is a diffusion-controlled enzyme. What reaction is catalyzed by this enzyme (structures of molecules not needed)? Explain why…1. (a) write, using structural formulas, the sequence of TCA cycle intermediates. Indicate the position of the 14C atom in each intermediate. Do not name enzymes or cofactors catalyzing the reactions. Starting with citrate formed immediately after reaction of [2-14C]acetyl-SCOA with OAA,