This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: ETC, Subject name: Biochemistry
Oxidative phosphorylation is inhibited by all EXCEPT: 
Select and explain. 
A. CO, B. Antimycin A, C. Malonate, D. Thermogenin
D: Thermogenin
Answer: D: Thermogenin 
Explanation: Uncouplers of ETC: Dinitrophenol, Thermogenin Oxidative phosphorylation means ETC. Inhibitors of ETC are given in table below: Inhibitors of ETC Complex Inhibitors Complex I Rotenone, Phenobarbitone, Amobarbital Piericidin A Complex II Malonate (3C) Carboxin (fungicide) TTFA (Trienoyl Tri Fluoro Acetone) Complex III Phenformin Antimycin A BAL {British Anti Lewisite or Dimercaprol Complex IV Co, CN, H2S, Sodium Azide Extra Information Uncouplers of ETC: Dinitrophenol, Thermogenin ADP to ATP conversion is inhibited by: Oligomycin ADP to ATP transfer is inhibited by: Atractyloside Thermogenin is uncoupler i.e. it inhibits Phosphorylation but not Oxidation.