The phosphorylation of glucose to glucose 6-phosphate has a $\Delta$G of +4.0 kcal/mol.If hexokinase is added to speed up the rate of this reaction, the $\Delta$G will

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The ΔG (Gibbs free energy change) of a reaction is a thermodynamic property that is independent of the path taken by the reaction, including the presence of enzymes. Enzymes speed up reactions by lowering the activation energy, but they do not change the overall ΔG of the reaction.

The Phosphorylation of Glucose to Glucose 6-Phosphate Has A Δ\DeltaΔ G of +40 Kcal/mol

The Phosphorylation of Glucose to Glucose 6-Phosphate Has A $\Delta$ G of +40 Kcal/mol