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
Dinitrophenol causes: 
Select and explain. 
A. Inhibition of ATP synthase, B. Inhibition of electron transport, C. Uncoupling of oxidation and phosphorylation, D. Accumulation of ATP
C: Uncoupling of oxidation and phosphorylation
Answer: C: Uncoupling of oxidation and phosphorylation 
Explanation: Ans. C. Uncoupling of oxidation and phosphorylationDinitrophenol uncouples oxidation and phosphorylation in the respiratory chain. The hydrogen ions reenter the mitochondrial matrix without ATP synthesis. The energy is released as heat.