Electron transport is coupled to ATP synthesis in mitochondria, in chloroplasts, and in the thermophilic bacterium Methanococcus.Which of the following is likely to affect the coupling of electron transport to ATP synthesis in ALL of these systems?

Question

Quizplus · Accepted Answer

An ADP analog that inhibits ATP synthase would affect the coupling of electron transport to ATP synthesis in all three systems, as ATP synthase is the enzyme responsible for synthesizing ATP during oxidative phosphorylation. In contrast, the potent inhibitor of cytochrome c oxidase would only affect electron transport in mitochondria and chloroplasts, while the removal of oxygen would only affect electron transport in mitochondria. The absence of light would only affect electron transport in chloroplasts.

Electron Transport Is Coupled to ATP Synthesis in Mitochondria, in Chloroplasts