What is the concentration of ATP above which the transfer of phosphate to pyruvate would be...
What is the concentration of ATP above which the transfer of phosphate to pyruvate would be spontaneous at 25°C, if [pyruvate] = 3 mM, [ADP]=300 µM and [PEP] = 100 µM? Numeric answer in M, to one decimal place, without units Note: The phosphate transfer potential of ATP is 30.5 kJ/mol, and PEP is 61.9 kJ/mol.
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What is the concentration of ATP above which the transfer of
phosphate to pyruvate would be...
5.The following reaction has a ΔG°'--61.9 kJ/mol at 25°C, Phosphoenolpyruvate (PEP) +H2O Pyruvate + Inorganic Phosphate...
5.The following reaction has a ΔG°'--61.9 kJ/mol at 25°C, Phosphoenolpyruvate (PEP) +H2O Pyruvate + Inorganic Phosphate (Pi) (a) Is the reaction favorable under standard biochemical conditions? Explain your answer. (b) What is the equilibrium constant (K) of this reaction at 25°C? In cells the direct hydrolysis of PEP rarely occurs. Rather, the hydrolysis of PEP and the reverse hydrolysis of ATP are coupled (c) w rite out the coupled reaction and determine its ΔG at 25°C The hydrolysis of ATP...
like me to grade. I vow did the take homeow 1. In glycolysis, the enzyme pyruvate...
like me to grade. I vow did the take homeow 1. In glycolysis, the enzyme pyruvate the enzyme pyruvate kinase catalyzes this reaction phosphoenolpyruvate + ADP - pyruvate + ATP caction using the information provided a. What is the equilibrium constant for below? (R-8.315 J/mol K; T = 298 K) Reaction 1: ATP - ADP +P Reaction 2: phosphoenolpyruvate vale pyruvate + PAG AG"=-30.5 kJ/mol pyruvate + P AGⓇ = -61.9 kJ/mol ntrations are provided below, what is the actual...
Shown is acetyl phosphate. Say a new enzyme uses acetyl phosphate to phosphorylate ADP to make ATP (acetyl phosphate + ADP —> acetate + ATP). What is the standard free energy change of this reacti...
Shown is acetyl phosphate. Say a new enzyme uses acetyl
phosphate to phosphorylate ADP to make ATP (acetyl phosphate + ADP
—> acetate + ATP). What is the standard free energy change of
this reaction?
CH3 Table 13-2 Standard Free Energies of Phosphate Hydrolysis of Some Compounds of Biological Interest AGo (kJ mol 1) 61.9 -49.4 45.6 43.1 -43.1 30.5 -20.9 19.2 13.8 13.8 -9.2 Compound Phosphoenolpyruvate 1,3-Bisphosphoglycerate ATP AMP + PP,) Acetyl phosphate Phosphocreatine ATP ㈠ ADP + Pi)...
stion 8 of 25 > The table lists the standard free energies of hydrolysis (AGⓇ) of...
stion 8 of 25 > The table lists the standard free energies of hydrolysis (AGⓇ) of some phosphorylated compounds. Compound kJ mol kcal mol-1 Phosphoenolpyruvate (PEP) -61.9 --14.8 1,3-Bisphosphoglycerate (1,3-BPG) -49.4 - 11.8 Creatine phosphate -43.1 ATP (to ADP) -30.5 -7.3 Glucose 1-phosphate -20.9 -5.0 Pyrophosphate (PP) Glucose 6-phosphate Glycerol 3-phosphate -9.2 -2.2 10.3 -4.6 -13.8 3.3 What is the direction of each of the following reactions when the reactants are initially present in equimolar amounts? The reaction ATP+H,O -...
The reaction catalysed by pyruvate kinase is: K'eg 3.63 x 105 Phosphoenolpyruvate + ADP -> pyruvate ATP a) Calculate the AG°" for this reaction. Show your working. 3 marks b) The hydrolysi...
The reaction catalysed by pyruvate kinase is: K'eg 3.63 x 105 Phosphoenolpyruvate + ADP -> pyruvate ATP a) Calculate the AG°" for this reaction. Show your working. 3 marks b) The hydrolysis of ATP has following equation: ATP+H20ADP P AG-30.5 kJ/mol Calculate the AG" for the following reaction: Phosphoenolpyruvate -> pyruvate Pi Show your working. 2 marks c) At 37 °C, the steady-state concentrations of phosphoenolpyruvate, ATP, and ADP have been measured to be 23 μΜ, 1.85 mM and 140...
The enzyme hexokinase catalyzes the following reaction: Glucose + ATP ↔ Glucose 6-phosphate + ADP For...
The enzyme hexokinase catalyzes the following reaction: Glucose + ATP ↔ Glucose 6-phosphate + ADP For this reaction, ΔG° = +16.7 kJ/mol a. Calculate the equilibrium constant for this reaction at 25 °C. Is this reaction spontaneous under standard conditions at this temperature? Calculate the ΔG if the reaction temperature was 25 °C and the concentrations are: glucose, 55.0 mM,; ATP, 5.00 mM; ADP, 1.00 mM; and glucose 6-Phosphate, 0.100 mM. Would the reaction be spontaneous under the conditions of...
To answer this question, please reference the Problem Solving Video: Free Energy, ATP, and Creatine in...
To answer this question, please reference the Problem Solving Video: Free Energy, ATP, and Creatine in Resting Muscles. The standard free energy ( Δ G ∘ ′ ) of the creatine kinase reaction is − 12.6 kJ ⋅ mol − 1 . The Δ G value of an in vitro creatine kinase reaction is − 0.1 kJ ⋅ mol − 1 . At the start of the reaction, the concentration of ATP is 6 mM, the concentration of creatine is...
1. 2. 3. 4. Select all that apply. Identify the reaction(s) of glycolysis inhibited by ATP □ glyceraldehyde-3-phosphate → 1,3-bisphosphoglycerate phosphoenolpyruvate +pyruvate 3-phosphoglycerate...
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2.
3.
4.
Select all that apply. Identify the reaction(s) of glycolysis inhibited by ATP □ glyceraldehyde-3-phosphate → 1,3-bisphosphoglycerate phosphoenolpyruvate +pyruvate 3-phosphoglycerate ~2-phosphoglycerate 1) fructose-6-phosphate→ fructose-1,6-bisphosphate . glucose glucose-6-phosphate Select all that apply. Alcohol fermentation: consumes ATP as it produces ethanol. O produces carbon dioxide begins as pyruvate is decarboxylated to acetaldehyde in a reaction catalyzed by alcohol dehydrogenase m regenerates NAD requires the enzyme alcohol dehydrogenase, In the figure below, what is the reaction occurring at the location...
The concentration of fructose 6-phosphate (F6P) and fructose 1, 6-biphosphate (F16BP), ATP, and ADP in muscle...
The concentration of fructose 6-phosphate (F6P) and fructose 1, 6-biphosphate (F16BP), ATP, and ADP in muscle tissue were measured as 0.089, 0.012, 12.0, and 1.2 mM. For the reaction F6P(aq) + ATP(aq) rightarrow F16BP(aq) + ADP(aq) at 37 degree C, the standard Gibbs energy (at pFl=7) is -18.3 kJ/mol. Calculate the reaction Gibbs energy (kJ/mol) for the reaction in the muscle tissue environment. -71.2 -29.4 -7.3 +4.5 +11.2.
ve the overall reaction ATP + glucose→glucose-6-phosphate + ADP + H. lf the &G" of ATP...
ve the overall reaction ATP + glucose→glucose-6-phosphate + ADP + H. lf the &G" of ATP hydrolysis is /mol, what is AG for the coupled reaction? A. 46 kJ/mo B-18.4 kJ/mol C. -32.2 kJ/mol D. 18.4kJ/mol 26. Which of the following is true about oxidation-reduction reactions? A. B. C. D. During oxidation a compound gains electrons. Every oxidation must be accompanied by a reduction Dehydrogenases typically remove two electrons and two hydrides (H). There are four commonly accessed oxidation states...
5.The following reaction has a ΔG°'--61.9 kJ/mol at 25°C, Phosphoenolpyruvate (PEP) +H2O Pyruvate + Inorganic Phosphate (Pi) (a) Is the reaction favorable under standard biochemical conditions? Explain your answer. (b) What is the equilibrium constant (K) of this reaction at 25°C? In cells the direct hydrolysis of PEP rarely occurs. Rather, the hydrolysis of PEP and the reverse hydrolysis of ATP are coupled (c) w rite out the coupled reaction and determine its ΔG at 25°C The hydrolysis of ATP...
like me to grade. I vow did the take homeow 1. In glycolysis, the enzyme pyruvate the enzyme pyruvate kinase catalyzes this reaction phosphoenolpyruvate + ADP - pyruvate + ATP caction using the information provided a. What is the equilibrium constant for below? (R-8.315 J/mol K; T = 298 K) Reaction 1: ATP - ADP +P Reaction 2: phosphoenolpyruvate vale pyruvate + PAG AG"=-30.5 kJ/mol pyruvate + P AGⓇ = -61.9 kJ/mol ntrations are provided below, what is the actual...
Shown is acetyl phosphate. Say a new enzyme uses acetyl
phosphate to phosphorylate ADP to make ATP (acetyl phosphate + ADP
—> acetate + ATP). What is the standard free energy change of
this reaction?
CH3 Table 13-2 Standard Free Energies of Phosphate Hydrolysis of Some Compounds of Biological Interest AGo (kJ mol 1) 61.9 -49.4 45.6 43.1 -43.1 30.5 -20.9 19.2 13.8 13.8 -9.2 Compound Phosphoenolpyruvate 1,3-Bisphosphoglycerate ATP AMP + PP,) Acetyl phosphate Phosphocreatine ATP ㈠ ADP + Pi)...
stion 8 of 25 > The table lists the standard free energies of hydrolysis (AGⓇ) of some phosphorylated compounds. Compound kJ mol kcal mol-1 Phosphoenolpyruvate (PEP) -61.9 --14.8 1,3-Bisphosphoglycerate (1,3-BPG) -49.4 - 11.8 Creatine phosphate -43.1 ATP (to ADP) -30.5 -7.3 Glucose 1-phosphate -20.9 -5.0 Pyrophosphate (PP) Glucose 6-phosphate Glycerol 3-phosphate -9.2 -2.2 10.3 -4.6 -13.8 3.3 What is the direction of each of the following reactions when the reactants are initially present in equimolar amounts? The reaction ATP+H,O -...
The reaction catalysed by pyruvate kinase is: K'eg 3.63 x 105 Phosphoenolpyruvate + ADP -> pyruvate ATP a) Calculate the AG°" for this reaction. Show your working. 3 marks b) The hydrolysis of ATP has following equation: ATP+H20ADP P AG-30.5 kJ/mol Calculate the AG" for the following reaction: Phosphoenolpyruvate -> pyruvate Pi Show your working. 2 marks c) At 37 °C, the steady-state concentrations of phosphoenolpyruvate, ATP, and ADP have been measured to be 23 μΜ, 1.85 mM and 140...
1.
2.
3.
4.
Select all that apply. Identify the reaction(s) of glycolysis inhibited by ATP □ glyceraldehyde-3-phosphate → 1,3-bisphosphoglycerate phosphoenolpyruvate +pyruvate 3-phosphoglycerate ~2-phosphoglycerate 1) fructose-6-phosphate→ fructose-1,6-bisphosphate . glucose glucose-6-phosphate Select all that apply. Alcohol fermentation: consumes ATP as it produces ethanol. O produces carbon dioxide begins as pyruvate is decarboxylated to acetaldehyde in a reaction catalyzed by alcohol dehydrogenase m regenerates NAD requires the enzyme alcohol dehydrogenase, In the figure below, what is the reaction occurring at the location...
The concentration of fructose 6-phosphate (F6P) and fructose 1, 6-biphosphate (F16BP), ATP, and ADP in muscle tissue were measured as 0.089, 0.012, 12.0, and 1.2 mM. For the reaction F6P(aq) + ATP(aq) rightarrow F16BP(aq) + ADP(aq) at 37 degree C, the standard Gibbs energy (at pFl=7) is -18.3 kJ/mol. Calculate the reaction Gibbs energy (kJ/mol) for the reaction in the muscle tissue environment. -71.2 -29.4 -7.3 +4.5 +11.2.
ve the overall reaction ATP + glucose→glucose-6-phosphate + ADP + H. lf the &G" of ATP hydrolysis is /mol, what is AG for the coupled reaction? A. 46 kJ/mo B-18.4 kJ/mol C. -32.2 kJ/mol D. 18.4kJ/mol 26. Which of the following is true about oxidation-reduction reactions? A. B. C. D. During oxidation a compound gains electrons. Every oxidation must be accompanied by a reduction Dehydrogenases typically remove two electrons and two hydrides (H). There are four commonly accessed oxidation states...
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