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April 20, 2014

Homework Help: Biology

Posted by Cindy on Saturday, January 26, 2013 at 7:00pm.

Okay so if i have two enzyme catalyzed reactions:

1) delta g of the ES = -22kJ/mol
2) delta g od the ES = 42 kJ/mol

Is this first reaction going to have a higher reaction rate because the of the negative delta g, because doesnt a negative delta g give you a spontaneous reaction? But then in the back of my mind im thinking just because it is spontaneous doesnt mean that it can be fast; it could take a million years to have the reaction go to completion right? But since it is a catalyzed reaction does that mean that the reaction rates are increased and the first reaction would have a faster reaction rate?
If anyone could please help me understand this concept I would really appreciate it. Thank you!

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