Polysaccharides or glucans (homo- or hetero-) are large molecules made up of several hundreds or several thousands of residues of various monosaccharides, linked to each other by different types of bond (α or β; l→4, l→6, l→3, etc.). Polysaccharides of average molecular weight, where between 10 and 250 monosaccharides are incorporated (molecular weight between 2000 and 35000), are not found in the natural state and so there is a break in the size scale not seen with proteins. However, their variety is limited by the fact that a pattern of one or two monosaccharides is repeated X times and generally one or two bonds predominate.
KeywordsGalacturonic Acid Invert Sugar Cellular Wall Sucrose Molecule Amylopectin Chain
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