In musical terminology, tempo (time in Italian; plural: tempi) is the speed or pace of a given piece. In classical music, tempo is usually indicated with an instruction at the start of a piece (often using conventional Italian terms). Tempo is usually measured in beats per minute (BPM).
Definition of polysaccharide. : a carbohydrate that can be decomposed by hydrolysis into two or more molecules of monosaccharides; especially : one (as cellulose, starch, or glycogen) containing many monosaccharide units and marked by complexity.
Storage polysaccharides are a storage form of energy, for example cellulose in plants and glycogen in animals and humans. Structural polysaccharides give structure to plants; examples include cellulose in plants and chitin in the shells of crustaceans.