Here's how it works in prokaryotes:
* Location: The reactions of aerobic respiration take place in the cytoplasm and on the inner surface of the plasma membrane.
* Electron Transport Chain: The final stage of aerobic respiration, the electron transport chain, occurs on the plasma membrane of prokaryotes. This membrane acts as a "substitute" for the cristae of mitochondria in eukaryotic cells.
Key Differences:
* Absence of Mitochondria: Prokaryotic cells lack mitochondria, the specialized organelles in eukaryotes that house the majority of the electron transport chain and ATP synthesis.
* Plasma Membrane: Prokaryotes use their plasma membrane as the site for the electron transport chain.
In Summary: While the processes of aerobic respiration are essentially the same in prokaryotes and eukaryotes, the location of these processes differs due to the absence of mitochondria in prokaryotes.