ATP is synthesized using the same strategy in oxidative phosphorylation and photophosphorylation Oxidative phosphorylation is the process in which ATP is generated as a result of electron flow from Nadh or FADH, to O, via a series of membrane-bound electron carriers, called the respiratory chain(reducing O2 to H2O at the end) Photophosphorylation is the process in which ATP(and NADPH) is synthesized as a result of electron flow from HO to adpt via a series of membrane-bound electron carriers(oxidizing h2o to O2 at the beginning1. ATP is synthesized using the same strategy in oxidative phosphorylation and photophosphorylation • Oxidative phosphorylation is the process in which ATP is generated as a result of electron flow from NADH or FADH2 to O2 via a series of membrane-bound electron carriers, called the respiratory chain (reducing O2 to H2O at the end). • Photophosphorylation is the process in which ATP (and NADPH) is synthesized as a result of electron flow from H2O to NADP+ via a series of membrane-bound electron carriers (oxidizing H2O to O2 at the beginning)