Cyanide alters the normal relative concentration of protons in the intermembrane space and the matrix of the mitochondria.What is the effect of this change in concentration? A) The electron transport chain will run out of control. B) NADH cannot be oxidized. C) FADH₂ cannot be oxidized. D) ATP cannot be synthesized. E) All of the above are true.

Question

Quizplus · Accepted Answer

Cyanide inhibits the electron transport chain by binding to cytochrome c oxidase, preventing the transfer of electrons to oxygen. This halts the proton gradient formation necessary for ATP synthesis by ATP synthase. The other options are not directly affected by cyanide's action.

Cyanide Alters the Normal Relative Concentration of Protons in the Intermembrane