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Proteins are _______

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in Chemistry – Class 12 by (188k points)
Proteins are _______

(a) dipeptides

(b) tripeptides

(c) tetrapeptides

(d) polypeptides

This question was posed to me at a job interview.

This interesting question is from Biomolecules topic in division Biomolecules of Chemistry – Class 12

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Correct option is (d) polypeptides

To explain: When the number of amino acids in a peptide is more than ten, it is a polypeptide. But when a polypeptide has more than a 100 amino acid residues, with molecular mass higher than 10000u, it is called a protein. However, this is not true in all cases (like insulin).

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