👉 Ectoenzymes are enzymes that function as a single unit, typically consisting of several catalytic sites. These enzymes have specific functions in biochemical reactions and can be used to catalyze chemical reactions such as phosphorylation, dehydrogenation, or oxidation, among others. Ectoenzymes are found in a wide variety of organisms including bacteria, archaea, fungi, plants, and animals. They play important roles in various biological processes, from metabolism to signal transduction.