Combustion of glucose (CH1,0) is the main source of energy for animal cells: CGH 1206(s) +602(g)6CO2(8) + 6H2O() AG (37 °C)-2872. kJ rxn One of the most important uses to which this energy is put is the assembly of proteins out of amino acid building blocks. The Gibbs free energy of formation of one peptide bond, joining one amino acid to another, is 21 kJ/mol. Suppose some cells are assembling a certain protein made of 79 amino acids. (Note that the number of peptide bonds in the proteín will be one less than the number of amino acids.) Calculate the minimum mass of glucose that must be burned to assemble 550. pumol of this protein. Round your answer to 2 significant digits. wto x10 ? Check Explanation Privac 2019 McGraw-Hill Education. All Rights Reserved. Terms of Use

Combustion of glucose (CH1,0) is the main source of energy for animal cells: CGH 1206(s) +602(g)6CO2(8) + 6H2O() AG (37 °C)-2872. kJ rxn One of the most important uses to which this energy is put is the assembly of proteins out of amino acid building blocks. The Gibbs free energy of formation of one peptide bond, joining one amino acid to another, is 21 kJ/mol. Suppose some cells are assembling a certain protein made of 79 amino acids. (Note that the number of peptide bonds in the proteín will be one less than the number of amino acids.) Calculate the minimum mass of glucose that must be burned to assemble 550. pumol of this protein. Round your answer to 2 significant digits. wto x10 ? Check Explanation Privac 2019 McGraw-Hill Education. All Rights Reserved. Terms of Use

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter10: Fuels, Organic Chemicals, And Polymers

Section: Chapter Questions

Problem 119QRT

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Another step in the metabolism of glucose, which occurs after the formation of glucose6-phosphate, is the conversion of fructose6-phosphate to fructose1,6-bisphosphate(bis meanstwo): Fructose6-phosphate(aq) + H2PO4(aq) fructose l,6-bisphosphate(aq) + H2O() + H+(aq) (a) This reaction has a Gibbs free energy change of +16.7 kJ/mol of fructose6-phosphate. Is it endergonic or exergonic? (b) Write the equation for the formation of 1 mol ADP fromATR for which rG = 30.5 kJ/mol. (c) Couple these two reactions to get an exergonic process;write its overall chemical equation, and calculate theGibbs free energy change.
Calculate the equilibrium constant for the phosphorylation of glucose to glucose 6-phosphate at 37.0 °C. 4.74 x10¬3 M-1 eq In the rat hepatocyte, the physiological concentrations of glucose and P; are maintained at approximately 4.8 mM. What is the equilibrium concentration of glucose 6-phosphate (G6P) obtained by the direct phosphorylation of glucose by P;? 8.75 x10-8 [G6P] = M Incorrect
Consider The Following Reaction: CaCO3(S) + 2HCl(Aq) = CaCl2(Aq) + H2O(L) + CO2(G) Write down the quation of the equilibrium constant kc for this reaction
Combustion of glucose (C6H12O6) is the main source of energy for animal cells: CHO) +60, (e) 600, (e) 6H,O) + (1) rxn AG (37 °C)=-2872. kJ One of the most important uses to which this energy is put is the assembly of proteins out of amino acid building blocks. The Gibbs free energy of formation of one peptide bond, joining one amino acid to another, is 21 kJ/mol. Suppose some cells are assembling a certain protein made of 27 amino acids. (Note that the number of peptide bonds in the protein will be one less than the number of amino acids.) Calculate the minimum mass of glucose that must be burned to assemble 250. umol of this protein. Round your answer to 2 significant digits. g 0 E
Combustion of glucose (C₂H₂O₂) is the main source of energy for animal cells: C₂H₁0()+60₂(g) 6CO₂(g) + 6H₂O() AG,(37 "C)--2872. kJ One of the most important uses to which this energy is put is the assembly of proteins out of amino acid building blocks. The Gibbs free energy of formation of one peptide bond, joining one amino acid to another, is 21 kJ/mol. Suppose some cells are assembling a certain protein made of 82 amino acids. (Note that the number of peptide bonds in the protein will be one less than the number of amino acids.) Calculate the minimum mass of glucose that must be burned to assemble 800. umol of this protein. Round your answer to 2 significant digits. 08 D.P X 1426
Combustion of glucose (CH,0 is the main source of energy for animal cells: CH,0,) + 60,(g) -- 6CO,(g) + 6H,o) AG,(37 C) =- 2872. kI One of the most important uses to which this energy is put is the assembly of proteins out of amino acid building blocks. The Gibbs free energy of formation of one peptide bond, joining one amino acid to another, is 21 k/mol. Suppose some cells are assembling a certain protein made of 84 amino acids. (Note that the number of peptide bonds in the protein will be one less than the number of amino acids.) Calculate the minimum mass of glucose that must be burned to assemble 400. umol of this protein. Round your answer to 2 significant digits.
Combustion of glucose (CH,1206) is the main source of energy for animal cells: CH1206(s) + 602(g) 6 CO2(g) + 6 H,O(1) AG(37 °C)=-2872. kJ One of the most important uses to which this energy is put is the assembly of proteins out of amino acid building blocks. The Gibbs free energy of formation of one peptide bond, joining one amino acid to another, is 21 kJ/mol. Suppose some cells are assembling a certain protein made of 65 amino acids. (Note that the number of peptide bonds in the protein will be one less than the number of amino acids.) Calculate the minimum mass of glucose that must be burned to assemble 350. µmol of this protein. Round your answer to 2 significant digits.
Calculate the Gibbs free energy change (AG) for the following chemical reaction: glutamate + NH3 glutamine +H2O The reaction occurs at 68 °F, the change in heat (AH) = 4103 Cal, and the change in entropy (AS)= 2.4 Cal/K. %3D
b) Determine the standard enthalpy change and std. Gibbs free energy change of reaction at 400 k for the reaction Co(g) +2H2(g) → CH;OH (g) At 298.15 K, AH?.co )= -26.41 kcal/mol, AH?.CH,OH()= -48.08 kcal/mol, AG.co )= -32.8079 kcal/mol, AG.CH,OH(@)= -38.69 kcal/mol, The standard heat capacity of various components is given by. CS = a + bT + cT2 + dT³, where C is in cal/mol-K and T is in K |Component b x10 e x105 d x10° a -0.291 CH3OH CO 4.55 2.186 -1.92 6.726 0.04 0.1283 -0.5307 H2 6.952 -0.0457 0.09563 -0.2079
Calculate the equilibrium constant of the reaction in which glutamine is formed -O2CCH (NH3 +) CH2CH2CONH2 (hereinafter G) from glutamic acid -O2CCH (NH3 +) CH2CH2COOH (G ') in cells, under the action of the synthetase enzyme glutamine. This reaction is used to carry ammonia from the cells to the kidneys, where it is re-released and excreted. Use the value of the standard free reaction enthalpy G '(aq) + NH3 (aq) → G (aq) equal to +15.7 kJ / mol at 37 ° C. The reaction is driven by the feed-back of the ATP (aq) → reaction ADP (aq) + Pi (aq). the standard free enthalpy of which is -31 kJ / mol. What is constant equilibrium joint reaction: G '(aq) + NH3 (aq) + ATP (aq) → G (aq) + ADP (aq) + Pi (aq)?
When ethyl acetate in dilute aqueous solution is heated in the presence of a small amount of acid, it decomposes to acetic acid and ethanol according to the equation CH;COOC;Hs + H;0 -> CH3COOH + C2HSOH Since the reaction takes place in dilute solution, the quantity of water present is so great that the loss of the small amount which combines with ethyl acetate produces no appreciable change in the total amount. Hence, of the reacting substances, only ethyl acetate suffers a measurable change in concentration. A chemical reaction of this sort, in which the concentration of only one reaction substance changes, is called a first-order reaction. It is a law of physical chemistry that the rate at which a substance is being used up in a first order reaction is proportional to the amount of that substance instantaneously present. If the initial concentration of ethyl acetate is Co, find the expression for its concentration at any time t.
) Determine the standard enthalpy change and std. Gibbs free energy change of reaction at 400 k for the reaction Co(g) +2H2(g) → CH;OH (g) At 298.15 K, AH?,co (»= -26.41 kcal/mol, AH9,cH,0H(0)= -48.08 kcal/mol, AG,co ()= -32.8079 kcal/mol, AG?.cH,oH()= -38.69 kcal/mol, The standard heat capacity of various components is given by, C = a + bT + cT² + dT³, where C§ is in cal/mol-K and T is in K |Component CH;OH CO b x10 с х105 -0.291 0.1283 a d ×10" 4.55 6.726 2.186 0.04 -0.0457 -1.92 -0.5307 -0.2079 6.952 0.09563