The Cellobiose Molecule - rotatable in 3 dimensions

Cellobiose is a disaccharide - formula C12H22O11 - consisting of two glucose units ( 12 carbon atoms, and 2 ring-shaped structures, each containing an oxygen atom) - like maltose.

However the two sugars are linked via a differently oriented glycosidic bond - a beta 1-4 bond - between opposite ends of the 2 glucose molecules. This apparently linear linkage is the basis for cellulose, which forms microfibrils running parallel to others, stabilised by hydrogen bonds.

This bond - effectively an oxygen bridge - is formed as a result of a condensation reaction.

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