Which acid is the building block of protein molecules?

The correct answer is Amino acids.

Key Points

• Amino acids are organic compounds containing an amino group and an acidic group as substituents on the same carbon.
• Amino acids contain amino and carboxyl functional groups.
• Amino acids are the building block of protein molecules.
• It is obtained by the hydrolysis of proteins.
• Most naturally occurring amino acids have L-configuration.

Important Points

• Proteins are made up of carbon, hydrogen, oxygen, and nitrogen.
• Protein helps in the building up of the human body.
• Protein serves as a source of energy during starvation.
• Proteins are linear chains of amino acids linked by peptide bonds.
• Each protein is a polymer of amino acids.

Additional Information

• Fats are composed of fatty acids and glycerol.
• Ethanoic acid is commonly called acetic acid and belongs to carboxylic acids.
• Formic acid is the acid present in ants.