Chemiosmosis contributes to ATP synthesis by utilizing the proton gradient established by the electron transport chain. This gradient drives ATP synthase, a protein complex that facilitates the phosphorylation of ADP to ATP, essentially acting as a motor for this process.
This video explains the electron transport chain (ETC) and chemiosmosis as the final steps in cellular respiration, focusing on how they collectively synthesize ATP. It details the location of the ETC, the roles of protein complexes, the function of oxygen as the terminal electron acceptor, and the importance of the resulting proton gradient in ATP production.