Which one of the following statements about coenzyme Q is not true? a. coenzyme Q is lipid-soluble b. coenzyme Q can accept one or two electrons c. conenzyme Q often diffuses in the membrane from one protein complex to another in its semiquinone form d. Coenzyme Q is one of the five electron carriers used in the electron transport chain

Biochemistry
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ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
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Which one of the following statements about coenzyme Q is not true?
a. coenzyme Q is lipid-soluble
b. coenzyme Q can accept one or two electrons
c. conenzyme Q often diffuses in the membrane from one protein complex to another in its semiquinone form
d. Coenzyme Q is one of the five electron carriers used in the electron transport chain
Expert Solution
Coenzyme Q

Coenzyme Q or ubiquinone or CoQ is an electron carrier that accepts electrons from NADH and FADH2, which are produced during the process of cellular respiration. It then transfers these electrons between protein complexes in the ETC, ultimately donating them to molecular oxygen to form water. During this process, CoQ undergoes cycles of oxidation and reduction, which allows it to participate in the transfer of electrons and protons across the mitochondrial membrane

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