So the beta one four linkages allow cellulose to form very long, straight chain linear fibers, as shown in the following diagram. So, unlike in this case and in this case, where the structure actually looks like a helical structure, here, it actually looks like a long, linear straight chain fiber as a result of the confirmation of the beta one four glycosytic bond. So why is this one four glycocitic bond? Well, because the bond is once again between carbon number one of one glucose and the fourth carbon of the adjacent glucose. But the arrangement, the orientation of this first carbon, the Animeric carbon, is the beta arrangement. That means this bond points in the same direction up with respect to this bond.