<prompt> Cyanide inhibits -Pyrurate kinaseCytochrome C oxidaseEnolaseNone  <response>: Ans. is b i.e., Cytochrome C oxidase Inhibitors of Electron transport chain Respiratory chaino Complex I:- Barbiturates amobarbital, piercidin A, rotenone, chlorpromazine, guanithidine.o Complex II:- Carboxim TTFA, malonate.o Complex III :- Dimercapro!, BAL. actinomycinA, Naphthyloquinone.o Complex IVcytochrome c oxidase Carbon monoxide CO, cyanide CN-, H2S, azide N3- 