This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory Chain, Subject name: Biochemistry
Mechanism of action of 2-4 Dinitrophenol is? 
Select and explain. 
A. Inhibition of electron transfer, B. Inhibition of ATP synthase, C. Uncoupling of phosphorylation from electron transfer, D. Inhibition of ATP-ADP exchange
C: Uncoupling of phosphorylation from electron transfer
Answer: C: Uncoupling of phosphorylation from electron transfer 
Explanation: ANSWER: (C) Uncoupling of phosphorylation from electron transferREF: Harper 27th ed ch: 13, Lehninger s Principles of Biochemistry 4th Ed page 707Indirect Repeat Biochemistry 2012 Session 2See Biochemistry 2013 Session 2 for details of Respiratory Poisons, Inhibitors & Uncouplers