Definition of carbohydrates
Carbohydrates are polyhydroxy aldehydes or ketones, or substances that yield
such compounds on hydrolysis. Many, but not all, carbohydrates have the
empirical formula (CH2O) n; some also contain nitrogen, phosphorus, or sulfur.
Function of carbohydrates
Stored Forms of Fuel
Serve Structural Roles
Bacterial and algal cell wall formation
Components of the Extracellular Matrix.
Certain carbohydrates (sugar and starch) are a dietary staple in most parts of
the world
Insoluble carbohydrate polymers serve as structural and protective elements
in the cell walls of bacteria and plants and in the connective tissues of
animals.
Carbohydrate polymers lubricate skeletal joints and participate in
recognition and adhesion between cells.
Most carbohydrates found in nature occur as polysaccharides, also called glycans
Homopolysaccharides
Heteropolysaccharides