To which chemical group do all enzymes belong?

Explanation

**Step-by-Step Solution:**

1. **Understanding Enzymes**: Enzymes are biological catalysts that speed up chemical reactions in living organisms. They play a crucial role in various biochemical processes.

2. **Chemical Composition of Enzymes**: Enzymes are primarily composed of proteins. This means that their structure and function are fundamentally linked to the properties of proteins.

3. **Proteins and Amino Acids**: Proteins are large, complex molecules made up of smaller units called amino acids. The sequence and arrangement of these amino acids determine the specific function of the protein, including that of enzymes.

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