So within our stomach, the protein denatures as a result of the high acidity, and it also begins to break down. So pepsin breaks down the protein chemically into smaller units we call polypeptides. Now, those polypeptides will eventually reach the small intestine. And in this small intestine, we know that pancreas produced and secretes pancreatic peptidases that are responsible for breaking down our peptide bonds. So we have three important peptidases. We have trypsin chimotrypsin, and we have carboxy peptidase.