Dinitrophenol causes:: (A) Inhibition of ATP synthase, (B) Inhibition of electron transport, (C) Uncoupling of oxidation and phosphorylation, (D) Accumulation of ATP
Answer is C. 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.