Question

Describe the mechanism of enzyme action.

Answer 1

Answer:

All enzymes have active site where the substrate binds. The binding of the substrate causes a lowering of the  activation energy and the reaction proceeds at a faster rate. When the substrate binds to the enzyme, a new  structure is formed called transition-state structure.

The catalytic cycle of an enzymes involves :

1. The binding of the substrate to the active site of the enzyme.
2. The binding of the substrate induces the enzyme to alter its shape and   fit more tightly around the substrate.
3. The active site of the enzyme that is in close proximity of the substrate breaks the chemical bonds of  the substrate and an enzyme-product complex is formed.
4. The enzyme releases the product formed in the reaction and the free enzyme is ready to take up another  molecule of the substrate.

Answer 2

Explanation:

It's very simple but you've to understand this instead of mugging it up.

1. The substrate (the chemical which is converted into product) binds to the active site ( where substrate gets fixed) of the enzyme.

2. This binding induces the enzyme to change it's shape so that it fits more tightly around the substrate.

3. Now the active site of enzyme breaks the chemical bonds of the substrate.

4. The new enzyme - product complex is formed.

5. The new enzyme releases the products of the reaction.

6. Now the new enzyme is ready to bind to another molecule of the substrate.

That's it. It was so simple but remember don't mug up