The following groups or molecules are components of electron transport systems, EXCEPT
A) heme
B) [2Fe-2S] and [4Fe-4S] iron-sulfur clusters.
C) quinones.
D) flavin mononucleotide.
E) acetyl-S-CoA.

Question

Quizplus · Accepted Answer

Acetyl-S-CoA is not a component of electron transport systems. It is involved in the citric acid cycle or Krebs cycle. Choices A, B, C, and D are all components of electron transport systems, specifically in the respiratory chain. Heme is found in cytochromes, iron-sulfur clusters are in proteins such as NADH dehydrogenase and succinate dehydrogenase, quinones are electron carriers in the membrane, and flavin mononucleotide is a component of flavoproteins such as NADH dehydrogenase and succinate dehydrogenase.

The Following Groups or Molecules Are Components of Electron Transport