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Question

The enzyme in the following reaction is kept under which class?

Glucose+ATPEnzyme−−−−Mg++Glucose6Phosphate+ADP
 
  1. Ligase
  2. Lyase
  3. Isomerase
  4. Transferase


Solution

The correct option is D Transferase
Transferases: Enzymes catalysing a transfer of a group (other than hydrogen) between a pair of substrate. 

Lyases: Enzymes that catalyse removal of groups from substrates by mechanisms other than hydrolysis leaving double bonds.

Isomerases: Includes all enzymes catalysing inter-conversion of optical, geometric or positional isomers.

Ligases: Enzymes catalysing the linking together of two compounds, e.g., enzymes which catalyse joining of C-O, C-S, C-N, P-O, etc. bonds.

In the given enzymatic reaction, glucose is phosphorylated at the 6 carbon by ATP to yield glucose-6-phosphate. The phosphate group is transferred from ATP to glucose. So, the enzyme belongs to the class transferase. 
 

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