help 1.Consider the isomerization of glyceraldehyde-3-phosphate to dihydroxyacetone phosphate at 25°c:dihydroxyacetone phosphate -->glyceraldehyde-3-phosphateAGO' = -7.90 kJ/mola. Calculate the equilibrium constant at 30.1 °C.b. What would be the AG° at 35.9 °C of the reaction when the concentration of glyceraldehyde-3-phosphate is 0.122 M and the concentration of dihydroxyacetone phosphate is 0.0333 M.c. Is the reaction done in question b, spontaneous or non-spontaneous? How did you know?

Gibbs free energy allows to calculate the amount of energy released or absorbed by a system during a…

dihydroxyacetone phosphate ----> glyceraldehyde-3-phosphate AGO' = -7.90 kJ/mol . Calculate the equilibrium constant at 30.1 °c. . What would be the AG° at 35.9 °C of the reaction when the concentration of glyceraldehyde-3-phosphate is 0.122 M and the concentration of dihydroxyacetone phosphate is 0.0333 M. . Is the reaction done in question b, spontaneous or non-spontaneous? How did you know?

dihydroxyacetone phosphate ----> glyceraldehyde-3-phosphate AGO' = -7.90 kJ/mol . Calculate the equilibrium constant at 30.1 °c. . What would be the AG° at 35.9 °C of the reaction when the concentration of glyceraldehyde-3-phosphate is 0.122 M and the concentration of dihydroxyacetone phosphate is 0.0333 M. . Is the reaction done in question b, spontaneous or non-spontaneous? How did you know?

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Assume that the reaction Arabinose +Pi <> Arabinose-6-P has a delta G of +13.0 kJ/mol and the reaction XTP <> XDP + Pi has a delta G of -25.7 kJ/mol. Calculate the delta G for the combined reaction Arabinose + XTP <> Arabinose-6-P + ADP, in kJ/mol to four significant figures.
The equilibrium constant Kc for the reaction fructose-1,6-diphosphate ⇋ glyceraldehyde-3-phosphate + dihydroxyacetone phosphate is 8.9 x 10-5 M at 250C and the behavior is assumed to be ideal. Calculate the delta G for the process Suppose that we have a mixture that is initially 0.010 M in fructose-1,6-diphosphate and 1.0 x 10-5 M in both glyceraldehyde-3-phosphate and dihydroxyacetone phosphate. What is the delta G
The conversion of glucose-1-phosphate to glucose-6-phosphate by the enzyme phosphoglucomutase has a △G°' of -7.6 kJ/mol. Calculate the equilibrium constant for this reaction at 298 K and a pH of 7. (R = 8.315 J/K-mol) A. 0.003 B. 0.047 C. 1.00 D. 21
The formation of maltose, a disaccharide, from two glucose molecules, is not energetically favorable. However, if this reaction is coupled with the hydrolysis of ATP, the reaction occurs more favorably. Maltose + H2O = 2 Glucose , ΔG'o = -15.5 KJ/mol or -3.7 kcal/mol a. Determine if the coupled reaction will occur spontaneously at standard state through calculating the Gibbs Free Energy of Reaction. b. Calculate the equilibrium constant for each individual reaction, and for the coupled reaction (using free energy of reaction). Show that the equilibrium constant for the coupled reaction equals the equilibrium constants for the individual reactions multiplied together. c. If the reaction medium contains the following chemical species at their given concentrations (298 K and 1.0 atm, pH = 7.0), will the reaction proceed in the forward or the reverse direction? [Maltose] = [Glucose] = 10.0 mM; [ATP] = 5.0 mM; [ADP] = [Pi] = 20 mM
Acetone, CH3–(C=0) –CH3, and urea, NH2–(C=0)–NH2, have similar chemical structures. (a) Compare the possible intermolecular forces for acetone with those for urea. (b) Compare the intermolecular forces between phycocyanin and acetone with those between phycocyanin and water. Briefly explain how acetone disrupts the folding in phycocyanin. (c) Compare the intermolecular forces between phycocyanin and urea with those between phycocyanin and water. Briefly explain how urea disrupts the folding in phycocyanin. (d) Compare your experimental observation on the disruption of phycocyanin folding in the presence of acetone with that in the presence of urea. Briefly explain whether your comparison is consistent with the properties of acetone and urea.
The equilibrium constant Kc for the reaction fructose-1,6-diphosphate ⇋ glyceraldehyde-3-phosphate + dihydroxyacetone phosphate is 8.9 x 10-5 M at 250C and the behavior is assumed to be ideal. Calculate .for the process (standard state: 1M) Suppose that we have a mixture that is initially 0.010 M in fructose-1,6-diphosphate and 1.0 x 10-5 M in both glyceraldehyde-3-phosphate and dihydroxyacetone phosphate. What is ?
Consider the following chemical equation whose delta(G) = 9kcal/mol: AC + BD ---> AB + CD what are the reactants and what are the products is this reaction spontaneous? How do you know? Is energy released or consumed by this reaction? If an enzyme, which catalyzes this reaction is added, what will happen to delta (G) If this reaction is coupled to another reaction, whose delta(G) is -12 kcal/mol, what will be the net delta(G) value? will the overall reaction be spontaneous
Using Figure 1.3 of the Introduction as an example, a) draw all the structures of the tribasic amino acid lysine involved in the equilibrium reactions that would take place during titration against NaOH, starting with the fully protonated form below (draw the R-group in full). HAN+-CH- COOH (CH2)4 NH°+ b) indicate the numerical pa value of each equilibrium reaction, and which ionizable group is being dissociated in each step. c) indicate the net charge of the amino acid at each step and identify the zwitterion. d) Calculate the pI of this amino acid (show the calculation). e) What would be the predominant ionization states of this amino acid at physiological pH (7.4) and at this pH, what would the ratio of these two states be (show the calculation)?
A certain first order reaction has the rate law Rate = k[A] with k=0.0068 sec-1. If the initial concentration of A is 0.75 M, what will be the concentration of A after 1 minute? What is the half-life for this reaction? How much time will it take for 75% of A to react? How much A will be left after the passage of three half-lives? What is the initial rate of the reaction?
The turnover number of the enzyme fumarase that catalyzes the reaction, Fumarate + H20 ===→ L-malate, is 2.5 x 103 S - l and Km = 4.0 X 10- 6 mol/L. Calculate the rate of conversion of fumarate to L-malate if the fumarase concentration is 1.0 x 1 0 - 6 mol/L and the fumarate concentration is 2.04 x 10- 4 mol/L.
f glyceraldehyde-3-phosphate is synthesized with radioactive hydrogen and added to a solution containing aldolase and triose phosphate isomerase, what labelled molecules will be present when the reactions reach equilibrium? Explain your answer.
The biochemical standard free energy change for the reaction: A → B is −15.0 kJ/mol. What is the equilibrium constant at 25°C and pH 7? What is the free energy change for the reaction A→B at 37°C when [A]=10.0 mM and [B]=0.100 mM? (Give your answer in kJ/mol)