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The Glucose Molecule - rotatable in 3 dimensions

Glucose (also known as dextrose) is a monosaccharide - formula C6H12O6.

It is an example of a 6-carbon (hexose) sugar.

Notice the 6 carbon atoms (grey) forming the backbone of the molecule, and the oxygen atom (red) in the ring.

The hydrogen atoms (white) are either attached directly to the carbons, or via oxygen as OH groups - at an angle.

The ring itself is 6-sided, but only 5 of its corners are made up by carbon atoms. Only the carbon outside the ring ( number 6) has 2 single hydrogens and an OH group.

The glucose molecule can form into other configurations, but this structure (a-D-glucopyranose!) is the most stable and therefore most common in biological systems.

Web references

Glucose From Wikipedia, the free encyclopedia
D-glucose: from Fischer projection, via 3D glucopyranose, to Haworth projection - an animated tutorial from the Centre for Molecular and Biomolecular Informatics, part of the Faculty of Science of the Radboud University Nijmegen, The Netherlands.
Glucose tutorial from Elmhurst college, Illinois
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