Question

Name the type of enzyme involved in the following reaction:
S-G + S’ $\to$ S + S’-G

• A. Isomerase
• B. Transferase
• C. Hydrolase
• D. Lyase

Answer 1

The correct option is B Transferase

As shown in the reaction, there is a transfer of a functional group from one substrate to another. The chemical substituent G gets transferred from Substrate S to substrate S’. This transfer is facilitated by a transferase enzyme.


The enzymes are classified into six major classes. A brief about each class has been summarised in the following table.
$\begin{array}{ccc}\text{Sl.No.}& \text{Class}& \text{Function}\\ 1& \text{Oxidoreductase}& \text{This class of enzymes catalyses reactions that involve electron transfer}\\ 2& \text{Transferase}& \text{Enzymes that catalyse reactions which involve the transfer of groups of atoms are a member of this class}\\ 3& \text{Hydrolase}& \text{Enzymes that catalyse the hydrolysis reaction are a member of this class}\\ 4& \text{Lyase}& \text{Enzymes that catalyse the removal of groups from substrates by mechanisms other than hydrolysis leaving double bonds}\\ 5& \text{Isomerase}& \text{This class of enzymes are involved in reactions that convert a substance into its isomer}\\ 6& \text{Ligase}& \text{Ligases are enzymes that catalyse reactions which involve the formation of bonds/linking together of two compounds}\end{array}$