es ??? ??? ??? cellular respiration process that releases energy by breaking down glucose and other food molecules in the presence of oxygen ??? ??? ??? aerobic process that requires oxygen ??? ??? ??? anaerobic process that does not require oxygen ??? ??? ??? E.T.C a series of proteins in which the high-energy electrons from the Krebs cycle are used to convert ADP into ATP. ??? ??? ??? Joseph Pri