What is oxidative photophosphorylation?

Question

Clara Atchley · Accepted Answer

Oxidative phosphorylation is the metabolic pathway in which cells use enzymes to oxidise nutrients , therby releasing energy.

Oxidative phosphorylation is a process that almost all aerobic organisms engage in. Redox reactions involve the transfer of electrons from electron donors to electron acceptors during oxidative phosphorylation. The energy released from these redox reactions is utilized to form ATP. A set of protein complexes known as electron transport chains, which are found in the inner membrane of eukaryotic cells' mitochondria and the intermembrane space of prokaryotic cells, are responsible for carrying out these reactions. Despite being an essential component of metabolism, oxidative phosphorylation generates reactive oxygen species like hydrogen peroxide and superoxide, which can cause damage to cells and even cause disease.

Emma Arvizu · Answer

undefined This process, known as oxidative photophosphorylation, takes place in the mitochondria of eukaryotic cells and involves the phosphorylation of ADP to ATP (adenosine triphosphate) using energy from the electron transport chain, which is the transfer of electrons from electron carriers like NADH and FADH2 to oxygen molecules. Protons are pumped across the inner mitochondrial membrane during the electron transport chain, creating a proton gradient, and the flow of protons back across the membrane through ATP synthase facilitates the phosphorylation of ADP to ATP, which leads to the production of ATP.