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Proteins are made from atoms of carbon, hydrogen, oxygen, nitrogen and

June 1, 2025 by rawan239

Proteins are made from atoms of carbon, hydrogen, oxygen, nitrogen and some also contain sulphur and phosphorus. Molecules made up of these atoms that synthesise protein are known as:

Amino acid

Nucleic acid

Glucose

Cellulose

This question was previously asked in

UPSC Geoscientist – 2021

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Proteins are polymers made up of repeating monomer units called amino acids. Amino acids contain carbon, hydrogen, oxygen, and nitrogen, and some also contain sulfur (e.g., in cysteine and methionine) or are post-translationally modified with phosphorus (e.g., in phosphoproteins).

Amino acids are the building blocks of proteins. There are 20 standard amino acids that are genetically encoded for protein synthesis. They link together via peptide bonds to form polypeptide chains, which then fold into functional proteins.

Nucleic acids (like DNA and RNA) are made up of nucleotides and carry genetic information, playing a crucial role in protein synthesis but are not the monomers of protein itself. Glucose and Cellulose are carbohydrates, made primarily of carbon, hydrogen, and oxygen.

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