Enzymatic reactions that use ATP as energy source

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Enzymatic reactions that utilize ATP as an energy source are numerous and critical in cellular metabolism. Glycolysis is a key example, where the process begins by consuming 2 ATP to convert glucose into pyruvate, despite the overall yield of 4 ATP. This highlights the dual role of ATP in both energy investment and production during metabolic pathways.
semo321
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can anyone tell me what are the enzymatic reactions that use ATP an energy source ?
 
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Well, not *every*, but certainly very many.
 
Yes, a great many of them require ATP.

Take glycolysis for example. Even though it produces 4 ATP, it requires 2 ATP to break down glucose into pyruvates, iirc.
 

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