Calculate AG°' at 25 °C for the reaction:ATP + pyruvate = ADP + phosphoenolpyruvateCalculate Keq at 25 °C for the reaction:ATP + pyruvate = ADP + phosphoenolpyruvateWhat is the equilibrium ratio of pyruvate tophosphoenolpyruvate (PEP) if the ratio of ATP to ADP is 10?Calculate AG' for the isomerization of glucose 6-phosphateto glucose 1-phosphate at 25 °C.What is the equilibrium ratio of glucose 6-phosphate (G6P)to glucose 1-phosphate (G1P) at 25 °C?AGO! =Keq=[pyruvate][PEP]AGO!II[G6P][G1P]31.43 ×10-6Incorrect3 x1046 X10-2Incorrect0.85IncorrectkJ mol-¹kJ mol-¹ The table lists the standard free energies (AG°') of hydrolysis of some phosphorylated compounds.CompoundPhosphoenolpyruvate (PEP)1,3-Bisphosphoglycerate (1,3-BPG)Creatine phosphateATP (to ADP)Glucose 1-phosphatePyrophosphate (PP;)Glucose 6-phosphateGlycerol 3-phosphatekJ mol-¹-61.9-49.4-43.1-30.5-20.9-19.3-13.8-9.2kcal mol-1-14.8-11.8-10.3-7.3-5.0-4.6-3.3-2.2

The change in Gibbs free energy (ΔG) is the maximum amount of free energy available to do useful…

Answered: Calculate AG' at 25 °C for the…

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

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Acetocholinesterase is an enzyme possessing a single active site that metabolizesacetylcholine with a turn over number of 1.4 x 10^4s-1. How many grams of acetylcholine(molecular formula C7NO2H16+) will 2.16 x 10^-6 g acetocholinesterase metabolize in 60minutes? (The enzyme’s molecular mass is 4.2 x 10^4 g/mol).
5.4. If 32P labeled (radioactive phosphate) inorganic phosphate were introduced to erythrocytes undergoing glycolysis which of the following molecules would you expect to detect 32P in Glycolytic intermediates? A. Fructose 1-6 bisphosphate B. 3-Phosphoglyceraldehyde C. Dihydroxyacetone phosphate D. 2-Phosphoglycerate E. 1-3 bisphosphoglycerate F. Phosphoenolpyruvate G. 3-Phosphoglycerate H. Pyruvate I. None of the above is it E?
Given each set of information which may include common name(s) and the reaction catalyzed, you are required to identify the main class of the specific enzyme described. _____________________1. Name: alkaline phosphataseReaction: a phosphate monoester + H2O = an alcohol + phosphate_____________________2. Reaction: L-threonine = D-threonine.Other information: Inverts both chiral centers, a racemase. _____________________3. Name: glycine-N-acylaseReaction: acyl-COA + glycine = CoA + N-acylglycine_____________________ 4. Name: lysine decarboxylaseReaction: L-lysine = cadaverine + CO2 _____________________5. Name: methanol dehydrogenaseReaction: methanol + NAD+ = formaldehyde + NADH + H+ _____________________6. Name: citryl-CoA synthetaseReaction: ATP + citrate + CoA = ADP + phosphate + (3S)-citryl-CoA_____________________7. Name: D-xylulose reductaseReaction: xylitol + NAD+ = D-xylulose + NADH + H+ _____________________8. Name: cellobiose phosphorylaseReaction: cellobiose phosphate =…
Write a balanced equation for each of the following reactions or reaction sequences. (a) The reaction catalyzed by PFK-2 (b) The conversion of 2 moles of oxaloacetate to glucose (c) The conversion of glucose to UDP-Glc (d) The conversion of 2 moles of glycerol toglucose (e) The conversion of 2 moles of malate to glucose-6-phosphate
Write a balanced equation for each of the following reactions or reactionsequences.(a) The reaction catalyzed by PFK-2(b) The conversion of 2 moles of oxaloacetate to glucose(c) The conversion of glucose to UDP-Glc(d) The conversion of 2 moles of glycerol to glucose(e) The conversion of 2 moles of malate to glucose-6-phosphate
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 glycolytic enzyme aldolase catalyzes the following cleavage reaction: Fructose 1,6-bisphosphate ↔ glyceraldehyde-3-phosphate + dihydroxyacetone phosphate Here is information on the concentrations of these compounds in hepatocytes (liver cells). Reactant Concentration (M) Fructose 1,6-bisphosphate 1.4 x 10-5 glyceraldehyde-3-phosphate 3 x 10-6 dihydroxyacetone phosphate 1.6 x 10-5 The standard transformed free energy change (ΔG'°) of the reaction is +23.8 kJ/mol. At body temperature (37oC), is the reaction exergonic or endergonic in the hepatocyte? What is the value of the actual free energy change (ΔG) in the cell?
Consider the following reaction: Glucose-1-phosphate → Glucose-6-phosphate ΔG° = −7.1 kJ/mol What is the equilibrium constant for this reaction at 25oC?
Write the reaction for the hydrolysis of 1,3-bisphosphoglycerate coupled to the phosphorylation of ADP using the curved-arrow symbolism.
When some of the carbons of glutamate are converted to glycogen, what is the order of the following compounds in that pathway?(a) Glucose (b) Glutamate(c) Glycogen (d) Oxaloacetate(e) x-Ketoglutarate (f) Phosphoenolpyruvate
A glycolytic intermediate may be used to make the glycerol 3-phosphate necessary for the production of glycerophospholipids. For this conversion, provide a reaction sequence.
Consider the following list of phosphorylated compounds with their free energy changes of phosphate hydrolysis: Glucose-1-phosphate (-5.0 kcal/mol), PEP (-14.8 kcal/mole), 1,3-bisphosphoglycerate (-11.8 kcal/mole) and Glucose-6-Phosphate (-3.3 kcal/mol). Given that the free energy change of ATP hydrolysis is -7.3 kcal/mole, which of these molecules be directly synthesized by the transfer of a phospho- group from ATP? 1,3-bisphosphoglycerate Glucose-6-phosphate All of those phosphorylated compounds. PEP Glucose-1-phosphate

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