What are enzymes ? How many enzymes have been identified ?

What are enzymes? Why are enzymers called biocatalysts? Define substrate and product.

Gastric enzymes are:

How many spots of biodiversity in world have been identified till date by norman myres?

What are enzymes ? Write their two properties.

name the group of genes which have been identified in normal cells that could lead to cancer and how the so?

What is the turnover number of an enzyme?