Question

Some people might argue that an orange is a high energy food. Others would disagree and consider a cup of pasta to be a high energy food. How is it possible for both groups of people to argue their position and be correct? Based on the actual biochemistry of the molecules involved, which food has a higher energy content? Explain?

Answer 1

Answer is: pasta has a higher energy content.

Main component of pasta is flour and main component of flour is starch.

Starch (carbohydrate) is a polymeric carbohydrate consisting of a large number of glucose units bonded by glycosidic bond. Starch is a white, tasteless and odorless powder that is insoluble in cold water or alcohol.

Food rich in carbohydrates has high energy content, because human body can digest it very fast.

Orange has a lot of cellulose (also carbohydrate), but human body cannot digest it.