Question

Proteins is made up of

• A. Carbon, hydrogen, chlorine, sulphur
• B. Carbon, hydrogen, oxygen, nitrogen
• C. Carbon, manganese, phosphorus, nitrogen
• D. Carbon, iodine, oxygen and inorganic phosphate

Answer 1

The correct option is B Carbon, hydrogen, oxygen, nitrogen

Proteins are biological macromolecules made up of amino acids. Amino acids are made up of carbon, hydrogen, oxygen and nitrogen. Nitrogen is present as amino group attached to $\alpha$-carbon atom in amino acids.