Which of the following toxins would interfere with the electron transport chain by preventing the formation of a proton gradient?
A) mercury
B) arsenic
C) cyanide
D) DNP
E) carbon monoxide

Question

Quizplus · Accepted Answer

DNP (2,4-Dinitrophenol) works by uncoupling oxidative phosphorylation, which effectively dissipates the proton gradient across the mitochondrial membrane without producing ATP, thus interfering with the electron transport chain's ability to use the proton gradient for ATP synthesis.

Which of the Following Toxins Would Interfere with the Electron