Metabolic pathways and signaling pathways are two main categories for understanding how the body converts energy substrates into ATP.

“they basically distinguish between and is one that they call the metabolic pathways another one they call the signaling Pathways and on the metabolic pathways we have of course many ways that we can uh convert energy from uh so we mainly of course it's it's it's proteins it's it's fats it's carbohydrates that we are converting basically from a substrate or from the food that we we ingest and we store in our body to then basically ATP which is the main fuel source that the muscles or different muscles in the body are using or different functions the body is using in order to survive”