______ is often used in carboxylation reactions while ____ is often used in decarboxylation reactions.
A) thiamine pyrophosphate; lipoate
B) lipoate; biotin
C) biotin; thiamine pyrophosphate
D) pyridoxal-5-phosphate; biotin
E) lipoate; pyridoxal-5-phosphate

Question

Quizplus · Accepted Answer

Carboxylation reactions involve the addition of a carboxyl group (-COOH) to a molecule, and biotin serves as a cofactor for carboxylation enzymes. Decarboxylation reactions involve the removal of a carboxyl group, and thiamine pyrophosphate serves as a cofactor for decarboxylation enzymes. Therefore, biotin is often used in carboxylation reactions while thiamine pyrophosphate is often used in decarboxylation reactions.

______ Is Often Used in Carboxylation Reactions While ____ Is

__ Is Often Used in Carboxylation Reactions While Is