Final answer:
Monosaccharides are simple sugars, with glucose being the most common example. They are the building blocks of carbohydrates and have a general formula of CnH2nOn. The number of carbon atoms in the sugar determines its classification.
Step-by-step explanation:
Monosaccharides are simple sugars, the most common of which is glucose. They are the building blocks of carbohydrates and consist of a single sugar unit. Monosaccharides have a general formula of CnH2nOn, and the number of carbon atoms in the sugar determines its classification as a triose, pentose, or hexose.