Question

Role of respiratory complex II in electron transport chain

29 Jan 2026
Answer :
Word Count : 257
Respiratory complex II, also known as succinate dehydrogenase, plays a crucial role in the mitochondrial electron transport chain (ETC) by linking the tricarboxylic acid (TCA) cycle to oxidative phosphorylation. Unlike complexes I, III, and IV, complex II does not translocate protons across the inner mitochondrial membrane, but it facilitates the transfer of electrons from succinate to ubiquinone (coenzyme Q). In the TCA cycle, succinate ______ __________ ____ _____ _______ ________ ____ _________ _____ _____.
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