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The difference between AG and AG' (Basic Applied) In glycolysis the following reaction occurs: Fructose 6-phosphate...
Consider the given interconversion, which occurs in glycolysis. fructose 6-phosphate glucose 6-phosphate K1.97 What is AG...
Consider the given interconversion, which occurs in glycolysis. fructose 6-phosphate glucose 6-phosphate K1.97 What is AG for the reaction (K measured at 25 °C)? AG -1680.9 kJ/mol If the concentration of fructose 6-phosphate is adjusted to 1.4 M and that of glucose 6-phosphate is adjusted to 0.75 M, what is AG? AG =-4402.59 kJ/mol Which statements are consistent with the conditions at which AG is measured? The temperature is 273 K. The initial concentrations of reactant and product are 1...
Question #2 Consider the following reaction: 1. If a solution of fructose-1-phosphate is incubated with a catalytic amo...
Question #2 Consider the following reaction: 1. If a solution of fructose-1-phosphate is incubated with a catalytic amount of enzyme X, the fructose-1-phosphate is transformed to fructose-6-phosphate. At equilibrium, the concentrations of the reaction components are fructose-1-phosphate <> fructose-6-phosphate 10 mM 40 mM a. Calculate K'eq for this reaction at 25°C. b. Calculate AG" for this reaction at 25°C. (use Gas constant-R=8 J/molK) c. If the concentration of fructose-1-phosphate is adjusted to 20 M and the concentration of fructose-6-phosphate is...
a. through c. please! Question #2 Consider the following reaction: 1. If a solution of fructose-1-phosphate...
a. through c. please!
Question #2 Consider the following reaction: 1. If a solution of fructose-1-phosphate is incubated with a catalytic amount of enzyme X, the fructose-1-phosphate is transformed to fructose-6-phosphate. At equilibrium, the concentrations of the reaction components are fructose-1-phosphate <-> fructose-6-phosphate 10 mM 40 mM a. Calculate K'eq for this reaction at 25°C. b. Calculate AG" for this reaction at 25°C. (use Gas constant-R=8J/molK) c. If the concentration of fructose-1-phosphate is adjusted to 20 M and the concentration...
14. The second step of glycolysis is the following reaction: Glucose-6-phosphate = Fructose-6-phosphate At pH 7...
14. The second step of glycolysis is the following reaction: Glucose-6-phosphate = Fructose-6-phosphate At pH 7 and 25 °C, IM of G6P and F6P will equilibrate to [F6P]/[G6P] = 2.43. R, the molar gas constant, is 8.3145 Jmol'K'. A) What is the standard free energy of this reaction at pH 7 and 25 °C? (2 points) B) In the cell the overall AG is -1400 Jmol"!. Calculate the ratio of products to reactants. (2 points)
A highly regulated reaction in glycolysis involves the addition of a second phosphate to fructose-6-phosphate, which...
A highly regulated reaction in glycolysis involves the addition
of a second phosphate to fructose-6-phosphate, which could be be
written as:
Fructose-6-phostphate + Pi à Fructose-1,6-bisphosphate + H2O
The ∆Go’ for this reaction is +16.8 kJ/mol
In a muscle cell at 37 oC, assume the concentration of
Fructose-6phosphate is 0.014 mM and the concentration of phosphate
is 1 mM.
a. What would be the equilibrium concentration of
fructose-1,6bisphosphate under these conditions?
b. What is Keq for this reaction?
Show...
1) SHOW WORK 12. During glycolysis, glucose 1-phosphate is converted to fructose 6-phosphate in two successive...
1) SHOW WORK
12. During glycolysis, glucose 1-phosphate is converted to fructose 6-phosphate in two successive reactions: glucose 1-phosphate → glucose 6-phosphate glucose 6-phosphate + fructose 6-phosphate AG'' = -7.1 kJ/mol AG'º = +1.7 kJ/mol 13. The standard free-energy changes for the reactions below are given. phosphocreatine → creatine + Pi ATP → ADP + Pi AG" = 43.0 kJ/mol AG" = -30.5 kJ/mol What is the overall AG' for the following reaction? Iw a dee Hydrolysis of 1 M...
The second step of glycolysis is the conversion of glucose-6-phosphate to fructose-6-phosphate. What is the ΔG...
The second step of glycolysis is the conversion of glucose-6-phosphate to fructose-6-phosphate. What is the ΔG for this reaction at 25oC, when the glucose-6-phosphate] is 60 mM and the [fructose-6-phosphate] is 40 mM. Note: the ΔGo’ for this reaction is +1.7 kJ/mol (at 25oC). 0.780 kJ/mol 1.26 kJ/mol 1.47 kJ/mol 2.70 kJ/mol 0.695 kJ/mol 2.62 kJ/mol Answer not listed
4. (6 points) a. Draw the product(s) of an aldol cleavage carried out on glucose-6-phosphate. (This...
4. (6 points) a. Draw the product(s) of an aldol cleavage carried out on glucose-6-phosphate. (This reaction is not part of glycolysis, but please give the products of what this reaction would be if it took place.) b. Explain why the aldol cleavage in glycolysis takes place on fructose-1,6-bisphophate instead of glucose-6-phosphate.
Calculate the equilibrium constant K'eq for each of the following reactions at pH 7.0 and 25 °C, using the AG'0...
Calculate the equilibrium constant K'eq for each of the following reactions at pH 7.0 and 25 °C, using the AG'0 values in the given Table. glucose 6-phosphatase (a) Glucose 6-phosphate + H20 glucose P B-galactosidase (b) Lactose + H20 glucose galactose fumarase fumarateH2O (c) Malate Standard Free-Energy Changes of Some Chemical Reactions AG Reaction type (kI/mol) (kcal/mol) Glycosides MaltoseH,0 Lactose+ H,0 2 glucose glucose +galactose 15.5 15.9 -3.7 -3.8 Rearrangements Glucose 1-phosphate glucose 6-phosphate Fructose 6-phosphate glucose 6-phosphate -7.3 -1.7...
a. Which step in glycolysis is the major control point? Step 10, the addition of phosphate...
a. Which step in glycolysis is the major control point? Step 10, the addition of phosphate to phosphoenolpyruvate. Step 3, the addition of phosphate to fructose 6-phosphate. Step 1, the addition of phosphate to glucose. b. What compounds act as positive effectors of the enzyme that catalyzes this reaction? Citrate МАТР O Pyruvate ADP AMP c. What compounds are negative effectors? O AMP Citrate ADP ATP Glucose
Consider the given interconversion, which occurs in glycolysis. fructose 6-phosphate glucose 6-phosphate K1.97 What is AG for the reaction (K measured at 25 °C)? AG -1680.9 kJ/mol If the concentration of fructose 6-phosphate is adjusted to 1.4 M and that of glucose 6-phosphate is adjusted to 0.75 M, what is AG? AG =-4402.59 kJ/mol Which statements are consistent with the conditions at which AG is measured? The temperature is 273 K. The initial concentrations of reactant and product are 1...
Question #2 Consider the following reaction: 1. If a solution of fructose-1-phosphate is incubated with a catalytic amount of enzyme X, the fructose-1-phosphate is transformed to fructose-6-phosphate. At equilibrium, the concentrations of the reaction components are fructose-1-phosphate <> fructose-6-phosphate 10 mM 40 mM a. Calculate K'eq for this reaction at 25°C. b. Calculate AG" for this reaction at 25°C. (use Gas constant-R=8 J/molK) c. If the concentration of fructose-1-phosphate is adjusted to 20 M and the concentration of fructose-6-phosphate is...
a. through c. please!
Question #2 Consider the following reaction: 1. If a solution of fructose-1-phosphate is incubated with a catalytic amount of enzyme X, the fructose-1-phosphate is transformed to fructose-6-phosphate. At equilibrium, the concentrations of the reaction components are fructose-1-phosphate <-> fructose-6-phosphate 10 mM 40 mM a. Calculate K'eq for this reaction at 25°C. b. Calculate AG" for this reaction at 25°C. (use Gas constant-R=8J/molK) c. If the concentration of fructose-1-phosphate is adjusted to 20 M and the concentration...
14. The second step of glycolysis is the following reaction: Glucose-6-phosphate = Fructose-6-phosphate At pH 7 and 25 °C, IM of G6P and F6P will equilibrate to [F6P]/[G6P] = 2.43. R, the molar gas constant, is 8.3145 Jmol'K'. A) What is the standard free energy of this reaction at pH 7 and 25 °C? (2 points) B) In the cell the overall AG is -1400 Jmol"!. Calculate the ratio of products to reactants. (2 points)
A highly regulated reaction in glycolysis involves the addition
of a second phosphate to fructose-6-phosphate, which could be be
written as:
Fructose-6-phostphate + Pi à Fructose-1,6-bisphosphate + H2O
The ∆Go’ for this reaction is +16.8 kJ/mol
In a muscle cell at 37 oC, assume the concentration of
Fructose-6phosphate is 0.014 mM and the concentration of phosphate
is 1 mM.
a. What would be the equilibrium concentration of
fructose-1,6bisphosphate under these conditions?
b. What is Keq for this reaction?
Show...
1) SHOW WORK
12. During glycolysis, glucose 1-phosphate is converted to fructose 6-phosphate in two successive reactions: glucose 1-phosphate → glucose 6-phosphate glucose 6-phosphate + fructose 6-phosphate AG'' = -7.1 kJ/mol AG'º = +1.7 kJ/mol 13. The standard free-energy changes for the reactions below are given. phosphocreatine → creatine + Pi ATP → ADP + Pi AG" = 43.0 kJ/mol AG" = -30.5 kJ/mol What is the overall AG' for the following reaction? Iw a dee Hydrolysis of 1 M...
4. (6 points) a. Draw the product(s) of an aldol cleavage carried out on glucose-6-phosphate. (This reaction is not part of glycolysis, but please give the products of what this reaction would be if it took place.) b. Explain why the aldol cleavage in glycolysis takes place on fructose-1,6-bisphophate instead of glucose-6-phosphate.
Calculate the equilibrium constant K'eq for each of the following reactions at pH 7.0 and 25 °C, using the AG'0 values in the given Table. glucose 6-phosphatase (a) Glucose 6-phosphate + H20 glucose P B-galactosidase (b) Lactose + H20 glucose galactose fumarase fumarateH2O (c) Malate Standard Free-Energy Changes of Some Chemical Reactions AG Reaction type (kI/mol) (kcal/mol) Glycosides MaltoseH,0 Lactose+ H,0 2 glucose glucose +galactose 15.5 15.9 -3.7 -3.8 Rearrangements Glucose 1-phosphate glucose 6-phosphate Fructose 6-phosphate glucose 6-phosphate -7.3 -1.7...
a. Which step in glycolysis is the major control point? Step 10, the addition of phosphate to phosphoenolpyruvate. Step 3, the addition of phosphate to fructose 6-phosphate. Step 1, the addition of phosphate to glucose. b. What compounds act as positive effectors of the enzyme that catalyzes this reaction? Citrate МАТР O Pyruvate ADP AMP c. What compounds are negative effectors? O AMP Citrate ADP ATP Glucose
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