What happens during cellular respiration cells obtain energy for performing work when?

Answer 1

During cellular respiration, cells convert biochemical energy from nutrients into adenosine triphosphate (ATP), the energy currency of the cell. This process typically involves three main stages: glycolysis, the citric acid cycle, and oxidative phosphorylation. In glycolysis, glucose is broken down into pyruvate, producing a small amount of ATP and NADH. The citric acid cycle and oxidative phosphorylation further extract energy from electrons carried by NADH and FADH2, ultimately generating a larger yield of ATP through the electron transport chain.