* Enzyme - This is the most common and general term.
* Catalyst - This term is more general and can refer to any substance that speeds up a reaction without being consumed in the process. Enzymes are biological catalysts.
* Biocatalyst - This term specifically emphasizes that the catalyst is a biological molecule.
It's important to note that while most enzymes are proteins, there are some enzymes that are made of RNA, called ribozymes.
