NADH
  
FMN - Flavin mononucleotide
                                         amytal
FeS - iron sulfur protein
               FADH₂
Q - coenzyme Q
                                        antimycin-A
cyt b - cytochrome b

cyt c1 - cytochrome c1

cyt c - cytochrome c

cyt a - cytochrome a

cyt a3 - cytochrome a3
                                        cyanide
oxygen