And both of these categories of enzymes are found at the brush border of our villi in the small intestine. Now, deep in our villi of the small intestine we have these exocrine glands that are known as the crypts or glands of Librechine. And they secrete and produce a special type for proteolytic enzyme known as Antera kinase. And what interkinase does is it basically Cleaves, a specialized type of zymogen known as Tripsinogen. And it activates trypsinogen and transforms it into trypsin. And trypsin is a very important type of proteolytic enzyme as we'll see in just a moment.