| Eukaryotes | Prokaryotes |
|---|---|
| In cytoplasm | In cytoplasm |
| Glycolysis | Glycolysis |
| Fermentation | Fermentation |
| Citric acid cycle | |
| Inside mitochondrion | On cell membrane |
| Matrix | Pyruvate oxidation |
| Citric acid cycle | Respiratory chain |
| Pyruvate oxidation | |
| Inner membrane | |
| Respiratory chain |