<prompt> inhibitor of NADG-COQ reductase in electron transpo chainrotenonephenoformincarbomonoxidemalonate  <response>: complex- nadh-coq reductase inhibited by rotenone,phenobarbitone complex 2 malonate inhibits complex 3 phenofromin complex 4 cyt c oxidase inhibited by COCNH2S ref : lipincott 9th ed 