have an energy storage
function and a structural function.
Polysaccharides incorporated by living
beings along the food are
important sources of carbohydrates for
the energetic metabolism of orga
of the next trophic levels.

Starch is the polysaccharide used for
energy store by plants. Glyc is a
macro responsible for the
storage of glucose in the liver and
muscles. Chitin is a polysaccharide with
structural functions that constitutes the
exoskeleton ofthe arth and the
cell wall in .