A distinct set of metabolic reactions is called a reaction ________.

Which of the following statements about first-degree AV blocks is TRUE?          

Electrons from FADH2 are delivered to _____, and electrons from NADH are delivered to _____ of the electron transport chain.

The enzyme _____ is the major control point for glycolysis.

One substrate level phosphorylation occurs in the citric acid cycle in the reaction catalyzed by ________.

Given , what is ?

If the [H+] of a solution is 1 × 10-4 M, the [OH-] is___________.

The total number of valence electrons in Al2O3 is _____.

Which of the following represents the correct order of electron flow in Complex I?

Bonus: In a newly discovered electron transport complex, a researcher has identified the redox center Fe-S, cytochrome c, and coenzyme Q. The researcher also knows that this complex ultimately passes its electrons to oxygen. What is most likely the redox center that completes this task?