A poison that prevents the transfer of electrons from the last iron-sulfur cluster of Complex I to coenzyme Q is added to a suspension of actively respiring mitochondria.Which statement best describes the effect seen?

Question

Quizplus · Accepted Answer

The poison would reduce ATP production because it inhibits electron transfer, decreasing proton pumping and thus reducing the proton gradient needed for ATP synthesis.

A Poison That Prevents the Transfer of Electrons from the Last