Where in a cell does most ATP production take place? mitochondria lysosomes nucleus cell wall

The Mitochondria

This is were ATP (aka energy for the cells) takes place.

I’m not exactly sure what your trying to ask, but if it’s how an organelle is similar to a body system or a part a nucleus is like a in function. but i don’t fully understand what you’re trying to ask

Leaves specifically the gas exchange between plants and the environment. while plants undergo photosynthesis, they also partake in cellular respiration. respiration is the process that happens in the leaves of plants.