NEET 2025 — Biology solution

NEET2025Biology

Name the class of enzyme that usually catalyze the following reaction :

$S - G + S^{'} \to S + S^{'} - G$

Where, $G \to$ a group other than hydrogen

$S \to$ a substrate

$S^{'} \to$ another substrate

A
Ligase
B
Hydrolase
C
Lyase
D
Transferase

Solution

The reaction $S - G + S^{'} \to S + S^{'} - G$ shows the transfer of a group $G$ (other than hydrogen) from one substrate to another. Enzymes that catalyse such transfers belong to the class transferases.

Briefly:

Ligases join two molecules with ATP (form C–O, C–S, C–N bonds).
Hydrolases cleave bonds using water.
Lyases remove groups non-hydrolytically, often forming double bonds.

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