Q:

What is the molecule on which an enzyme acts called?

A:

Quick Answer

The molecule on which an enzyme acts is called a substrate. Enzymes are very specific and usually act on a particular substrate, where the substrate fits into the enzyme at a region called the active site. Enzymes can divide a substrate into two different substances or add two substrates together.

  Know More

Full Answer

Substrates fit into the active site of enzymes, but the shape of the active site is so specific that only a certain substrate can fit. The lock-and-key theory states that the substrate fits into the enzyme like a key into a lock; only the correct key induces the enzyme to act. Another theory, the induced-fit theory, states that only a particular substrate can fit into the active site and transform it so that the active site fits snugly around the substrate, thus activating the enzyme.

Learn more about Molecular Biology & DNA

Related Questions

Explore