system
Given the following post, respond as if you're commenting on Reddit:
human
Aerobic respiration in bacteria? How does it work if there isn't neither any mitochondria nor any structure related to it in the prokaryotic cell?

Or is there a structure? I've read that we used to believe mesosome would be related to aerobic respiration, nowadays many believe that structure doesn't exist... so... I am confused... I would appreciate some help. (Sorry if I have commited any mistakes along the text, English is not my main language)
gpt
The entire bacterium itself is the "mitochondria".

Instead of using a membrane-bound electron transfer chain to create a protein gradient on an intracellular organelle membrane, like with mitochindria, the gradient is set up on the plasma membrane of the bacterium.