Here's a breakdown:
* Glycolysis: This initial stage of cellular respiration occurs in the cytoplasm and produces a small amount of ATP (2 molecules).
* Krebs Cycle: This cycle takes place in the mitochondrial matrix and produces a small amount of ATP (2 molecules), but primarily generates electron carriers (NADH and FADH2).
* Electron Transport Chain: This is the final stage of cellular respiration and occurs in the inner mitochondrial membrane. The electron carriers from the Krebs Cycle deliver electrons to the electron transport chain, which drives the pumping of protons across the membrane. This creates a proton gradient that is used by ATP synthase to generate a large amount of ATP (approximately 32 molecules).
Therefore, the electron transport chain, located in the mitochondria, is responsible for the majority of ATP production during cellular respiration.
