Classify the reaction that occurs at step 4 in the reaction schematic of the pyruvate dehydrogenase reaction below.
A) isomerization
B) addition
C) oxidation reduction
D) decarboxylation

Question

Classify the reaction that occurs at step 4 in the reaction schematic of the pyruvate dehydrogenase reaction below. 
A) isomerization 
B) addition 
C) oxidation reduction 
D) decarboxylation

Quizplus · Accepted Answer

Step 4 involves the transfer of electrons from dihydrolipoamide to FAD, resulting in the oxidation of dihydrolipoamide and reduction of FAD. This is a clear example of oxidation-reduction (redox) reaction.

Classify the Reaction That Occurs at Step 4 in the Reaction