And what that means is this bond points upward in the same direction as this group, which also points upward. And that's why we call it the beta anamer of D galactose. And because of this, this linkage is known as the beta one four glycositic bond. So we have a bond between carbon 104, but because this points up, not downward, this is the beta arrangement. And so we have the beta one four glycocitic bond. Now, in humans, we also have an enzyme, or at least most people have an enzyme known as lactase that breaks down this lactose into the individual constituents, galactose and glucose.