Starch and Glycogen

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Starch and Glycogen

Similarities

  • Both are made of the monosaccharide alpha glucose.
  • Both are used as energy storage.
  • Amylopectin in starch and glycogen both have 1,4 and 1,6 glycosidic bonds.
  • Both form glycosidic bonds between monosaccharide molecules in condensation reactions.
  • Both are compact molecules.
  • Both are insoluble.
  • Both can be broken down to glucose molecules for energy (again, energy storage.).

Differences

  • Glycogen has far more 1,6 glycosidic bonds and is therefore far more branched.
  • Glycogen is the storage molecule in animals, starch in plants.
  • Glycogen is more compact than starch, forming glycogen granules in cells.

Overall comparison

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