BIOMOLECULES AND ENZYMES

Detailed explanation-1: -Polypeptides are biomaterials composed of repeating amino acid units linked by a peptide bond. Polypeptides can conform to different three-dimensional architectures, depending on their chemical composition (Fig. 3.5).

Detailed explanation-2: -A polypeptide is a polymer of amino acids joined together by peptide bonds. Etymology: Greek polýs (many) + peptide. Larger polypeptides or more than one polypeptide that occur together are referred to as proteins.

Detailed explanation-3: -A peptide is two or more amino acids joined together by peptide bonds; a polypeptide is a chain of many amino acids; and a protein contains one or more polypeptides. Therefore, proteins are long chains of amino acids held together by peptide bonds.

Detailed explanation-4: -A peptide bond is a chemical covalent bond that joins amino acids together to form proteins. A peptide bond occurs between a carbon atom of one amino acid with a nitrogen atom of the other amino acid by removing a hydroxyl group and a hydrogen atom to form a molecule of water.