How is ATP synthesized via electron transport and oxidative phosphorylation? Be sure to include the following items in your answer : electrons, glycolysis, Krebs cycle, NADH, FADH2, hydrogen ion pump, intermembrane space, ATP synthase, ATP, and oxygen
What will be an ideal response?
Electrons (in hydrogen atoms) that are stripped out of reactions in glycolysis and the Krebs cycle are transported to the ETS via electron carriers (NADH and FADH2). The electrons are passed along carriers within the ETS and the energy they release is used by hydrogen ion pumps to move hydrogen ions from the mitochondrial matrix into the intermembrane space of the mitochondrion. Hydrogen ions then diffuse back into the matrix through special enzymes called ATP synthases. The movement of H+ through the enzymes energizes the enzymes, allowing them to phosphorylate ADP to form ATP. Oxygen serves as the final electron acceptor in the ETS, thus allowing the ETS to continue accepting electrons from NADH and FADH2.
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