Starch (amylose) figure - partially branched into helix
  

 
     Glycogen figure - greater amount of branching = more soluble

 
 

 

      Cellulose figure - polymer of beta linked glycosidic bonds:
                                       amylase which digests starch does not hydrolyze beta bonds &
                                       animals lack cellulase, capable of hydrolyzing cellulose.                    

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