Q. FAD is electron acceptor during oxidation of which of the following?
A) $\alpha$-ketoglutarate$\rightarrow$Succinyl Co-A
B) Succinic acid $\rightarrow$ Fumaric acid
C) Succinyl Co-A $\rightarrow$ Succinic acid
D) Fumaric acid $\rightarrow$ Malic acid
Explanation
In the Krebs’ cycle, when Succinic acid undergoes oxidation or dehydrogenation to form Fumaric acid, two hydrogens are transferred to FAD. FAD is reduced to FADH and enzyme involved in this step is Succinic acid dehydrogenase.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.