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<title>questions 2.22-00</title>
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<p><font COLOR="#CF411D">
Why does using the same enzyme to catalyze both the hydrolysis of
ATP and the synthesis of G-6-P mean that the energy produced by the ATP
hydrolysis can be used to drive the G-6-P sythesis and it (the energy
produced by the ATP synthesis) is no longer lost as heat?
<br></font><font color="#000000"> 
If the reactions are physically coupled they are no longer two separate
reactions but just one reaction: G + ATP <--> G6P + ADP, and the delta Go for
that reaction is about -3.4 kcal/mole. 
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