Question

Which of the following are used in reactions catalyzed by oxidoreductases?

• A. NADPH
• B. ADP
• C. FADH${}_2$
• D. NAD${}^{+}$

Answer 1

Answer: (A), (C), (D)

NAD${}^{+}$

Oxidoreductases are often associated with co-factors such as NADH, NADPH and FADH${}_2$. These can exist is two forms, oxidized and reduced forms, and hence often act as electron donors/acceptors in redox reactions.