An enzyme which removes groups (other than hydrogens) and leaves double bonds is called
A) an isomerase.
B) a lyase.
C) a ligase.
D) a transferase.
E) none of the above

Question

Quizplus · Accepted Answer

A lyase is an enzyme that cleaves a molecule, leaving a double bond. This double bond can either be between the two groups that were originally attached to the molecule, or between one of those groups and a hydrogen atom. Isomerases catalyze the rearrangement of a molecule's atoms, while ligases join two molecules together and transferases transfer a functional group from one molecule to another.

An Enzyme Which Removes Groups (Other Than Hydrogens) and Leaves