So this is the ring form of that glucose molecule. Now, what is the meaning of the beta. Well, if we examine this carbon number one, the beta simply means that the hydroxyl group of this carbon number one, known as the anumeric carbon, points in the same direction as this group here that is bound onto carbon number five. So this entire ch two oh group points in the same direction, so up as this hydroxyl group. And when they point in the same direction, that type of sugar is known as the beta anemer, because this carbon here, carbon number one, is known as the anomeric carbon. Now, on the other hand, if this nucleophile attacks from the other side, we're going to form the other animal known as the alpha animal, and this is known as alpha dlucopyrenose.