What is the constituent element of Carbohydrate?

The primary constituent elements of carbohydrates are carbon (C), hydrogen (H), and oxygen (O). These elements are typically arranged in a ratio of 1:2:1, as seen in simple sugars like glucose (C6H12O6). Carbohydrates serve as a major energy source for living organisms and can be classified into simple sugars (monosaccharides and disaccharides) and complex carbohydrates (oligosaccharides and polysaccharides).