Enzymes are important molecules that help chemical reactions in living beings happen faster and easier. Did you know that enzymes are present in many products used in our daily lives? Enzymes are present in detergents, in our pets’ food and in our own food. Sponges that live in the oceans need help from enzymes, too. Microscopic organisms make their homes on marine sponges, and these microbial partners produce enzymes that help the sponges with nutrient digestion! These useful enzymes can also be used by humans in the food industry, such as in the production of bread and cheese, as well as in detergents and cleaning pollutants. In this article, we will explore the enzymes produced by microorganisms living within marine sponges and describe some ways that these enzymes can be used in industry.