Cellular respiration is the process by which cells convert glucose and oxygen into energy, which can be used by the cell. During cellular respiration, energy is released in the form of ATP (adenosine triphosphate). The best statement that describes energy release in cellular respiration is "Energy is released through a chain of electron transfer reactions that generate a proton gradient across the mitochondrial membrane, which is used to synthesize ATP through the process of oxidative phosphorylation."
