Carbohydrates are composed of carbon, hydrogen, and oxygen in a 1:2:1 ratio, represented by the formula (CH₂O)n.
Carbohydrates are made up of three elements: carbon, hydrogen, and oxygen. The ratio of these elements in carbohydrates is 1:2:1, which gives carbohydrates a general stoichiometric formula of (CH₂O)n, where 'n' represents the number of carbon atoms in the molecule. Examples of carbohydrates include sugars, starch, and cellulose, which are vital for providing energy to the body and serving structural functions in plants.