Question

What are enzymes? Discuss briefly the classification of enzymes according to the IUB system giving classical examples of each class.

Answer 1

Enzymes are protein molecules. They increase the rate of chemical reaction without being consumed. As a catalyst facilitates the same chemical reaction over and over again, they accelerate chemical reactions over and over again. Enzymes are classified by a complex system based on the IUB system. According to IUB system, they are classified into 6 classes:

1. Oxido-reductase- Alcohol Dehydrogenases

2. Ligases- Succinate thiokinase

3. Transferases - Phosphorylases

4. Hydrolases -Lipase

5. Lyases- Aldolase

6. Isomerases- Phosphatase Isomerase