AP BIOLOGY

Detailed explanation-1: -The electron transport chain is a series of four protein complexes that couple redox reactions, creating an electrochemical gradient that leads to the creation of ATP in a complete system named oxidative phosphorylation. It occurs in mitochondria in both cellular respiration and photosynthesis.

Detailed explanation-2: -The mitochondrial electron transport chain utilizes a series of electron transfer reactions to generate cellular ATP through oxidative phosphorylation.

Detailed explanation-3: -Electron transport chain (ETC) occurs in the inner mitochondrial membrane, where the OXPHOS takes place through the action of ATP synthase, [37].

Detailed explanation-4: -Electron Transport Chain Reactants The reactants of the electron transport chain are NADH, FADH2, protons, ADP, and oxygen. NADH and FADH2 are electron carriers produced during glycolysis and the Citric Acid Cycle that donate electrons to the protein complexes in the inner membrane of the mitochondria.

Detailed explanation-5: -The end products of electron transport are NAD+, FAD, water and protons.