Carbohydrates are organic compounds composed of carbon, hydrogen and oxygen where the last two are in the ratio of 2 : 1 same as in water (H20). A carbohydrate is an organic compound which is broken down to release energy. Carbohydrates are represented by a general formula CnH2nOn. For example, C6H12O6 or glucose is an carbohydrate.
What are major elements of a cell ?
Carbon, hydrogen, oxygen and nitrogen are the major elements of a cell.