enzymatic reactions that use ATP as energy source

[semo321]

can anyone tell me what are the enzymatic reactions that use ATP an energy source ?

[Chaos' lil bro Order]

every

[Andy Resnick]

Well, not *every*, but certainly very many.

[Desh627]

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.