Question

Explain the characteristics of enzyme and mechanism of its action.

Answer 1

Enzymes speed up reactions by bringing reactants together and reducing the activation energy required to start the reaction (enzymatic reaction). Enzymes are specific: they have a specific shape, therefore only a certain substrate will fit its active site.

Answer 2

The mechanism of action of the enzymes are are understood by the lock and key hypothesis.

Explanation:

• By this hypothesis the enzyme is like the key which gets inserted into the substrate which is about to be changed into a product.

• Due to the link between the enzyme and the substrate there is breaking of the substrate and the production of two or more products.

• However the enzyme gets released from the the substrate as soon as the substrate breaks down. There is no change in the morphological of the chemical characteristics of the enzyme.

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