Question

Why are fats useful and sometimes better than carbohydrates

Answer 1

As compared to carbohydrate and proteins fats has more than twice a calories per gram. A gram of fats has 9 calories. A gram of carbohydrate and proteins has about 4 calorie. Therefore,fats useful and sometimes better than carbohydrates.

Answer 2

Fats contain more than twice chemical energy as proteins and carbohydrates have. So sometimes fats are very important than carbohydrates or some other biomolecules.