Which best describes the DG for hydrolysis of creatine phosphate under cellular conditions in which the concentration of creatine phosphate,creatine,and phosphate all equal 1 mM at 25°C.The DG° for the hydrolysis of creatine phosphate at 25°C is -43 kJ/mol.

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Quizplus · Accepted Answer

The DG for hydrolysis of creatine phosphate under cellular conditions is less than -43 kJ/mol because the reaction is coupled to the hydrolysis of ATP, which has a DG of -30.5 kJ/mol. The overall DG for the coupled reaction is therefore -73.5 kJ/mol.

Which Best Describes the DG for Hydrolysis of Creatine Phosphate