Respuesta :
not sure what you mean by 2 and 3, but sugars such as these use a lot of carbon and hydrogen!
The major building blocks in glucose, fructose, and sucrose are hydrogen and carbon.
What are elements?
Chemical elements are elements present in nature in mixed or natural forms. Every molecule or matter is made up of these elements. Our body is also made up of these elements.
Glucose, fructose, and sucrose are mainly carbohydrates. Carbohydrates are needed for energy in the body. The main elements from which glucose and fructose are made up are carbon, hydrogen, and oxygen.
There are two types of carbohydrates; simple and complex. And there are two types of carbohydrate-based on sweetness, some carbohydrates are sweet, but some are tasteless.
Thus, Hydrogen and carbon are the main constituents of glucose, fructose, and sucrose.
Learn more about Chemical elements, here:
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