Glycolysis is the process by which energy is harvested from glucose by living things. Several of the reactions of glycolysis are thermodynamically unfavorable (nonspontaneous), but proceed when they are coupled with other reactions. Reaction A: P,+glucose → glucose-6-phosphate + H,O AG = 13.8 kJ/mol Reaction B: P +fructose-6-phosphate fructose-1,6-bisphosphate + H,0 AG = 16.3 kJ/mol Reaction C: ATP + H,O - ADP + P AG = -30.5 kJ/mol Select every unfavorable reaction. reaction A reaction B O reaction C O DO

Glycolysis is the process by which energy is harvested from glucose by living things. Several of the reactions of glycolysis are thermodynamically unfavorable (nonspontaneous), but proceed when they are coupled with other reactions. Reaction A: P,+glucose → glucose-6-phosphate + H,O AG = 13.8 kJ/mol Reaction B: P +fructose-6-phosphate fructose-1,6-bisphosphate + H,0 AG = 16.3 kJ/mol Reaction C: ATP + H,O - ADP + P AG = -30.5 kJ/mol Select every unfavorable reaction. reaction A reaction B O reaction C O DO

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter16: Spontaneity Of Reaction

Section: Chapter Questions

Problem 75QAP: When glucose, C6H12O11, is metabolized to CO2 and H2O in living systems, the first step is the...

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When glucose, C6H12O11, is metabolized to CO2 and H2O in living systems, the first step is the conversion of glucose to glucose-6-phosphate. glucose+H3PO4glucose-6-phosphate+H2OG=13.4kJ This nonspontaneous reaction can be made to proceed by coupling it with the hydrolysis of ATP. ATP+H2OADP+H3PO4G=31.0kJ (a) Write an equation for the coupled reaction and calculate G°. (b) Estimate the number of moles of ATP required to convert glucose to glucose-6-phosphate.
Consider the following reactions at 25°C: C6H12O6(aq)+6O2(g)6CO2(g)+6H2O G=2870kJ ADP(aq)+HPO42(aq)+2H+(aq)ATP(aq)+H2OG=31kJ Write an equation for a coupled reaction between glucose, C6H12O6, and ADP in which G=390kJ .
Glycolysis is the process by which glucose is metabolized to lactic acid according to the equation C6H12O6(aq)2C3H6O3(aq) G=198 kJ at pH 7.0 and 25°C Glycolysis is the source of energy in human red blood cells. In these cells, the concentration of glucose is 5.0103 M, while that of lactic acid is 2.9103 M. Calculate AG for glycolysis in human blood cells under these conditions. Use the equation G=G+RT In Q, where Q is the concentration quotient, analogous to K.
In glycolysis, the reaction of glucose (Glu) to form glucose-6-phosphate (G6P) requires ATP to be present as described by the following equation: Glu+ATPG6P+ADPG298=17kJ In this process, ATP becomes ADP summarized by the following equation: ATPADPG298=30kJ Determine the standard free energy change for the following reaction, and explain why ATP is necessary to drive this process: GluG6PG298=?
Cells use the hydrolysis of adenosine triphosphate (ATP) asa source of energy. The conversion of ATP toADP has a standard free-energy change of -30.5 kJ/mol. Ifall the free energy from the metabolism of glucose, C6H12O6(s) + 6 O2(g)---->6 CO2(g)- + 6 H2O(l) goes into the conversion of ADP to ATP, how many moles ofATP can be produced for each mole of glucose?
What is the entropy at SATP of a reaction where ∆Hºrxn=-12.5 kJ and Keq=32.1? -0.150 J/K -150 J/K -29.4 J/K -13.1 J/K
cells use the hydrolysis of adenosine triphosphate, abbreviated as ATP, as a source of energy. Symbolically, this reaction can be written as ATP(aq) + H2O(l)--> ADP(aq) + H2PO4-(aq). where ADP represent adenosine diphosphate. For this reaction, ΔG∘=-30.5kj/mol. a. If all the free energy from the metabolism of glucose goes into forming ATP from ADP, how many ATP molecules can be produced for every molecule of glucose? C6H12O6 + 6O2 → 6CO2 + 6H2O
A patient receives 2500 mL of an IV solution containing 5.00 % (m/v) solution of glucose. How much energy, in kilojoules does the patient obtain from glucose a carbohydrate? (See conversion factor Table). 2126 kJ 12500 kJ 2100 kJ 2975 kJ 8500 kJ
What is Δ G° at 25 °C? N 2O 4(g) → 2 NO 2(g) Δ H° = 58.03 kJ Δ S° = 176.7 J/K 62.45 kJ 58.21 kJ 5.37 kJ 53.6 kJ 111 kJ
What is Keq at SATP for the reaction whose ∆Gº = 20.5 kJ? (R=8.314 J/mol-K) 2.55x10-4 1.01 0.981 5.32x10-9
Cells use the hydrolysis of adenosine triphosphate (ATP) as a source of energy. The conversion of ATP to ADP has a standard free-energy change of -30.5 kJ>mol. If all the free energy from the metabolism of glucose, C6H12O61s2 + 6 O21g2 ¡ 6 CO21g2 + 6 H2O1l2 goes into the conversion of ADP to ATP, how many moles of ATP can be produced for each mole of glucose?
The Caloric Value of carbohydrates in 1g is: 4 5 1 9