Fructose 6-phosphate + Pi ? fructose 1,6-bisphosphate + H2O ?G'º = +4.3 kcal/mol ATP + H2O ? ADP + Pi ?G'º = -7.3 kcal/mol Write the balanced formula for a new reaction that would couple the top reaction to the hydrolysis of ATP in such a way that the formation of fructose 1,6-bisphosphate will be thermodynamically favorable. Include the new value for ?G'º.
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3 kcal/mol ATP + HzO 6 ADP + Pi AG" -7.3 kcal/mol ** Show more…
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Fructose-6-phosphate is phosphorylated to fructose-(1-6)-bisphosphate as part of the glycolytic pathway. The phosphorylation of fructose-6-phosphate by phosphate is described by the following equation: Fructose-6-phosphate + Pi ↔ Fructose-(1-6)-bisphosphate ΔG0' = +47.7 kJ/mol Suppose that the phosphorylation of fructose-6-phosphate is coupled to the hydrolysis of ATP (-30.5 kJ/mol). What is the ΔG0' for the coupled reaction?
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Consider the following equations: Energy_change fructose 6-phosphate HPO4^- = fructose 1,6-bisphosphate 3.9 kcal/mol H2O ATP H2O ADP HPO4^2- 7.3 kcal/mol Which is the equation for the coupled reaction that is energetically favorable? ATP H2O - ADP HPO4^2- ADP fructose 1,6-bisphosphate ATP fructose 6-phosphate ATP fructose 6-phosphate ADP fructose 1,6-bisphosphate fructose 1,6-bisphosphate H2O → fructose 6-phosphate HPO4^2- ADP fructose 6-phosphate ATP fructose 1,6-bisphosphate
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In glycolysis, the reaction of glucose (Glu) to form glucose-6-phosphate (G6P) requires ATP to be present as described by the following equation: $\mathrm{Glu}+\mathrm{ATP} \longrightarrow \mathrm{G6P}+\mathrm{ADP} \qquad \Delta G_{298}^{\circ}=-17 \mathrm{kJ}$ In this process, ATP becomes ADP summarized by the following equation: $\mathrm{ATP} \longrightarrow \mathrm{ADP} \quad \Delta G_{298}^{\circ}=-30 \mathrm{kJ}$ Determine the standard free energy change for the following reaction, and explain why ATP is necessary to drive this process: $\mathrm{Glu} \longrightarrow \mathrm{G} 6 \mathrm{P} \quad \Delta G_{298}^{\circ}=?$
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