And these are connected by a special type of bond known as the beta one four glycocitic bond. Now, these lactose molecules are found in milk products and other dairy products. So if you ingest things like cheese or ice cream or milk itself, or let's say yogurt or sour cream, all of these dairy products basically contain lactose. Now, normally, if we ingest the lactose, eventually it makes its way into the small intestine of our body. And once inside our intestines, a special type of digestive enzyme is released, known as lactase. And what lactase does is it's able to actually use water molecules to catalytically cleave this glycocitic bond.