Question

proteins are made up of simpler substances _​

Answer 1

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Proteins are made up of monomers known as amino acids. In nature there are 21 different types of amino acids,these amino acids are joined together with peptide bonds,peptide bond is a bond between a caboxylic group of one amino acid with amino group of other amino acid.

Answer 2

Proteins are made up of simpler substances known as amino acid

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