The group of organic compounds that includes enzymes is proteins.

Here's why:

* Enzymes are biological catalysts: They speed up chemical reactions within living organisms without being consumed in the process.

* Proteins are complex molecules: They are made up of long chains of amino acids linked together.

* The shape of a protein determines its function: Enzymes have specific shapes that allow them to bind to and interact with specific molecules (substrates) involved in the reactions they catalyze.

While there are some exceptions, most enzymes are proteins. However, it's important to note that not all proteins are enzymes.