Lipids are larger, non polar organic molecules that do not dissolve in water.
Lipid molecules have a higher ratio of carbon, and hydrogen atoms to oxygen atoms than carbohydrates have.
Carbohydrates are compounds made of carbon, hydrogen, and oxygen in a ration of a bout two hydrogen’s to one oxygen atom. The number of carbon atoms varies.
Lipids store energy efficiently. They have large numbers of carbon to hydrogen bonds, which store more energy than carbohydrates.
The cells of human body obtain most of their energy from carbohydrates.