8 Questions
Which molecule serves as the initial electron acceptor in Complex II of the Krebs Cycle?
FAD
What is the name of Complex II in the Krebs Cycle?
Succinate Dehydrogenase
What is the product of the transfer of electrons from FADH2 through the three iron-sulfur centers in Complex II?
QH2
What is the product of the oxidation of succinate in Complex II?
Fumarate
Which complex in the respiratory chain reoxidizes QH2 produced in Complex II?
Complex III
What is the role of Complex III in the respiratory chain?
To reoxidize QH2
What is the name of the electron carrier that receives electrons from Complex II in the respiratory chain?
CoQ
What is the ultimate goal of the Krebs Cycle and the respiratory chain?
To produce ATP
Test your knowledge on the Krebs Cycle's Complex II, also known as Succinate Dehydrogenase. Learn about FAD as the initial e-acceptor, the oxidation process of succinate to fumarate, and the reoxidization of FADH2 through iron-sulfur centers to CoQ, yielding QH
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