There isn't one single enzyme responsible for aerobic respiration. Aerobic respiration is a complex process that involves a series of reactions catalyzed by many different enzymes.

Here are some key enzymes involved:

* Glycolysis:

* Hexokinase: Phosphorylates glucose

* Phosphofructokinase-1 (PFK-1): Key regulatory enzyme in glycolysis

* Pyruvate kinase: Converts phosphoenolpyruvate to pyruvate

* Krebs Cycle (Citric Acid Cycle):

* Citrate synthase: Combines acetyl-CoA and oxaloacetate to form citrate

* Isocitrate dehydrogenase: Catalyzes the oxidative decarboxylation of isocitrate

* α-ketoglutarate dehydrogenase: Catalyzes the oxidative decarboxylation of α-ketoglutarate

* Electron Transport Chain:

* NADH dehydrogenase: Transfers electrons from NADH to ubiquinone

* Succinate dehydrogenase: Transfers electrons from succinate to ubiquinone

* Cytochrome c reductase: Transfers electrons from ubiquinol to cytochrome c

* Cytochrome c oxidase: Transfers electrons from cytochrome c to oxygen, producing water

It's important to remember that this is just a small selection of the enzymes involved in aerobic respiration. The complete process involves dozens of enzymes working together in a complex and coordinated manner.