Now, what is the difference between these two animals, these two isomers? Well, if we examine the stereochemistry of carbon number one, we'll see that the stereochemistry of carbon number one is different in these two cases. So all the other atoms are arranged in the same exact way. But the atoms on carbon number one are arranged differently in alpha beta atomers. In the alpha case, we have this hydroxyl group points down in the opposite direction with respect to this group attached to carbon number five, while in the beta anamar case, in the beta g glucopyronose, this hydroxyl group is attached basically points up and points in the same direction as this group attached to carbon number five. So less than 1% of this mixture will exist in the open chain form and the remaining will exist as a mixture of these two cyclic forms.