QUESTION 2 ADP ATP AG"= 1.75 kJ/mol AG"=-18.9 kJ/mol 1,3-Bisphosphoglycerate → 3-Phosphoglycerate Normal free energy of the shown step of glycolysis coupled with synthesis of one molecule of ATP is -18.9 kJ/mol. Calculate AG" (in kJ/mol) of dephosphorylation of 1,3-Biphosphoglycerate if AG" of synthesis of ATP from ADP is 1.75.
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- Question 9: For the reaction catalyzed by the enzyme hexokinase, Glucose + ATP = glucose 6-phosphate + ADP, the equilibrium constant is 7.8 x 10² at 298 K. Please answer the following independent questions. A. Determine the standard Gibbs free energy of the reaction. B. In dying E. coli cells, the concentrations of metabolites were found to be: [ATP] = 0.5 mM, [ADP] = 100 mM, [glucose] =0.1 mM, and [glucose 6-phosphate] = 2 mM ay 298 K. Does the reaction proceed spontaneously? C. What would be the ATP:ADP ratio at equilibrium at 37 C if the concentration of glucose is 100- fold less than that of glucose-6-phosphate? The standard enthalpy of this reaction at 298 K is - 23.8 kJ/mol.QUESTION 28 Recall the reaction catalyzed by phosphoglucomutase: glucose-1-phosphate glucose-6-phosphate Assume that in liver cells under fed conditions, the G1P concentration = 2.5x10-2 M, and the G6P concentration = 1x10-3 M. Using the equation AG = AGO + RTIN([product)/freactant]), calculate AG for the reaction, given that: AGO = -7.1 kJ mol-1 R = 8.315x10-3 kJ mol-1 K-1 T = 310 K (37°C) In which direction will the reaction proceed spontaneously under these conditions? O +1.2 kl mol1; reverse reaction spontaneous. O -3.5 kl mol-1: forward reaction spontaneous. O -10.7 k) mol1; forward reaction spontaneous. O -15.4 kJ mol1; forward reaction spontaneous.Question 12 Which reaction in glycolysis consumes an inorganic phosphate (P₁)? O oxidation of glyceraldehyde 3-phosphate O isomerization of 1,3-biphosphoglycerate isomerization of glucose 6-phosphate O cleavage of glyceraldehydes 3-phosphate O phosphorylation of fructose 6-phosphate Prev
- Question:- Two enzymes, acetate kinase and phosphotransacetylase, convert acetate [CH3C(O)O–] and ATP to acetyl phosphate and ADP (acetate kinase reaction) then acetyl phosphate and CoASH (coenzyme A) into acetyl-CoA and inorganic phosphate (Pi ; phosphotransacetylase reaction). What is the ΔG°' for the synthesis of acetyl-CoA from acetate, CoASH, and ATP by this enzyme pair?Question 1. (a) The TCA cycle plays a a central role in the aerobic catabolism of fuel molecules. Explain the dependence of the TCA cycle on aerobic conditions, (b) Compute the theoretical yield of ATP by oxidative phosphorylate when the acetyl-CoA obtained from B-oxidation of palmitic acid (16:0) is completely in an e aerobic cell show all working.Partial Question 9 0.33 /1 pts Consider the following reaction: CH,OPO CH,OPO CH-OPO ATP ADP CH-OH н но Н но phosphofructokinase-1 (PPK-1) H 13 ÓH H ÒH H Fructose 6-phosphate Fructose 1,6-bisphosphate Which of the following statements about this reaction is (are) correct? Mark all that apply Is part of the Krebs cycle. Is part of the destabilzation reactions of glycolysis. Transters energy from fructose to ATP. 2 Transfers energy from ATP to fructose.
- Question 1. Answer the following questions: A. The complete oxidation of 1 mole of glucose to CO2 and H2O yields 686 kcal of free energy.How many ATP molecules could maximally be generated from one molecule of glucose, if theuseful chemical energy available in the high energy phosphate bond of 1 mole of ATP is 12kcal? B. However, it is known that cellular respiration produces 30 moles of ATP from 1 mole ofglucose. How does this compare with your answer in part (A)? Estimate the overall efficiency ofATP production from glucose? C. Assume that the cells of your body are oxidizing glucose and no energy is being dissipated asheat to the environment. However, the heat not converted into chemical-bond energy isincreasing the temperature of your body. How much would the temperature of your body riseupon oxidation of 1 mole of glucose if your body consists of 75 kg of water. [Hint: One kilocalorie (kcal) is defined as that amount of energy that heats 1 kg of water by 1oC]Question 7 of 16 ©Mat One way of expressing the rate at which an enzyme can catalyze a reaction is to state its turnover number. The turnover number is the maximum number of substrate molecules that can be acted on by one molecule of enzyme per unit of time. The table gives the turnover number of four representative enzymes. W F2 #m 3 E How many molecules of fumarate can one molecule of fumarase act on in 29.0 min? D fumarate Lactate dehydrogenase lactate fumarate molecules: F3 > Enzyme Ribonuclease Fumarase $ 4 R Urease F F4 % 5 T G B 6 HOLO F5 Substrate Turnover number (per second) RNA 100 800 1000 10.000 Y H & 7 urca F6 U J DELL * 8 CO F7 K ( 9 FB O P ; man Wi F10 [ F11 1 F12 Backspace Enter Insert Print Screen Shift Delete Home Scroll Lock Answer End 8:24 PM 10/15/2023 + PgUp Pause Break PgDn Num Lock 7 Home 4 1 EncQuestion 4 Glucose + Pi -> glucose-6-phosphate + H20 deltaG"= -6 kJ/mol ATP + H2O-> ADP + Pi deltaG= -22 kJ/moi What is deltaG" for this reaction ATP + glucose -> ADP + glucose-6-phosphate deltaG"= ? O a. 28 kJ/mol O b. 22 kJimoi Oc 20 kJimrol Od-22 kimol A Ma
- Question 4 If 32p – labeled (radioactive phosphate) inorganic phosphate were introduced to erythrocytes undergoing glycolysis which of the following molecules would you expect to detect 32 p in Glycolytic intermediates? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a Fructose 1-6 bisphosphate b 3-Phosphoglyceraldehyde Dihydroxyacetone phosphate d 2-Phosphoglycerate e 1-3 bisphosphoglycerate f Phosphoenolpyruvate 3-Phosphoglycerate h Pyruvate i None of the aboveQuestion 1: The overall process enabled by the glyoxylate cycle is: (2acetyl-CoA) + (NAD+) + (2H2O) → (succinate) + (2CoA) + (NADH) + (2H+) Dissect this process further by writing down all of the reactions that are actually involved in making one succinate from two acetyl-CoA units. Show chemical structure for all intermediates.AG" = -69.5 kJ · mol- The percent efficiency of oxidative phosphorylation is 35%. Calculate the number of ATP generated by Complex I. Use 1 significant figure. The amount of ATP generated by Complex I is mol ATP. The equation for the overall reaction that occurs in Complex I is shown as: NADH + H+ + Q = NAD+ + QH2 Please explain! Thank you so much..