The type of molecule made from amino acids and acts as a biological catalyst is a protein.

Here's why:

* Amino Acids: Proteins are long chains of amino acids linked together by peptide bonds.

* Biological Catalysts: Enzymes are proteins that speed up biochemical reactions without being consumed in the process. They are essential for all biological processes.

Key takeaway: While all proteins are made of amino acids, not all proteins are enzymes. Enzymes are a specific type of protein with catalytic activity.