Question

How do lipids differ from carbohydrates and proteins?

Answer 1

The answer to this question lies in the concept of the energy calculated per gram that is the release of energy based on the digestion process and also the difference is based on the polarity of these given compounds.

Complete answer:
In the lower classes of chemistry, we have come across the chapters relating to the vitamins and minerals and also about the proteins, fats, lipids and so on.
Let us now see the differences in the carbohydrates, lipids and proteins.
- Carbohydrates are those which are made of saccharide units and these are the molecules consisting of carbon, hydrogen and oxygen atoms.
- Proteins are the naturally occurring extremely complex substances which consist of amino acid residues that are joined by the peptide bonds.
- Lipids are the organic compounds that are fatty acids and these are insoluble in water.
Thus, based on all these definitions, we can say that lipid molecules contain more energy per gram compared to that of carbohydrates and proteins. Carbohydrates are easily digested compared to the lipids and release their energy more rapidly.
- Although lipids and proteins are examples of nutrients they differ in the fact that the lipids are having fatty acids and glycerol and proteins have amino acids that consist of nitrogen.
Therefore, the correct answer lies in this difference.

Note:
Note that lipids are the fats which act as insulation for the body and the proteins are the building blocks of energy which is required for the functioning of the body including growth and repair of muscles, connective tissues and skin.