An enzyme that catalyzes conversions of L-sugars to D-sugars is called a(n)________.
A)lyase
B)hydrolase
C)synthetase
D)synthase
E)isomerase

Question

Quizplus · Accepted Answer

An isomerase is an enzyme that catalyzes the conversion of one isomer to another. In this case, it catalyzes the conversion of L-sugars to D-sugars (or vice versa), and is therefore referred to as a sugar isomerase. Lyases break chemical bonds, hydrolases break down molecules with the addition of water, synthetases create new molecules, and synthases catalyze the synthesis of new molecules but do not specifically convert L-sugars to D-sugars.

An Enzyme That Catalyzes Conversions of L-Sugars to D-Sugars Is