The Free Energy of ATP Hydrolysis Is -31

question 4

Multiple Choice

The free energy of ATP hydrolysis is -31.0 kJ/mol. The free energy of glucose phosphorylation by hexokinase is +14.3 kJ/mol. These two reactions are coupled to allow them to proceed spontaneously. What is the overall free energy associated with this coupled reaction?

• A) -45.3 kJ/mol
• B) -31 kJ/mol
• C) -16.7 kJ/mol
• D) 16.7 kJ/mol
• E) 45.3 kJ/mol

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