explain the
mechanism of electron transport system with schematic diagram
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Schematic diagram of the electron transport chain (ETC) of mitochondria. Complex (C) I, II, III, IV, and V represent each complex in the ETC chain. The ETC uses NADH and FADH2 to make ATP. These reducing equivalents for ETC are generated during glycolysis, fatty acid breakdown, and in the Tricarboxylic Acid pathways (TCA), also known as the Krebs cycle. The electron flow starting from NADH binding to complex I or from succinate/FADH2 binding to complex II initiate electron flow that ultimately results in ATP production in Complex V, the ATPase. If these pathways malfunction, ATP production is reduced, placing stress on the cell.
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