Which of the following is an effect of dinitrophenol on oxidative phosphorylation

A. Inhibition of cytochrome b

B. Blockade of both electron transport and ATP synthesis

C. Inhibition of ATP synthesis with normal electron transport

D. Inhibition of electron transport but not ATP synthesis

Correct Answer: Inhibition of ATP synthesis with normal electron transport

Description: Inhibition of ATP synthesis Dinitrophenol is an uncoupler. Uncouplers cause uncoupling of oxidation and phosphorylation, i.e. they allow electrons transport to proceed without ATP synthesis.

Category: Biochemistry

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