compare ATP production and locations in the cell for Glycolysis, citric acid cycle and electron Transport system

- Glycolysis produces ATP in the cytoplasm of the cell. It is the process of breaking down glucose into pyruvate and produces a small amount of ATP through substrate-level phosphorylation.

- The citric acid cycle (also known as the Krebs cycle) takes place in the mitochondria of the cell. It is a series of chemical reactions that occur in the matrix of the mitochondria and produces ATP through substrate-level phosphorylation and the reduction of electron carriers.

- The electron transport system is also located in the mitochondria, specifically in the inner mitochondrial membrane. It is the final step in cellular respiration and involves the transfer of electrons through a series of protein complexes. This process generates ATP through oxidative phosphorylation, using the energy from the electron transfer chain to pump protons across the inner mitochondrial membrane and creating an electrochemical gradient that drives ATP synthesis by ATP synthase.

Overall, the citric acid cycle and electron transport system produce the majority of the ATP in the cell, with glycolysis providing a smaller amount of ATP as an initial step in the process of cellular respiration.