BIOMOLECULES AND ENZYMES

Detailed explanation-1: -A protein molecule is made from a long chain of these amino acids, each linked to its neighbor through a covalent peptide bond (Figure 3-1). Proteins are therefore also known as polypeptides. Each type of protein has a unique sequence of amino acids, exactly the same from one molecule to the next.

Detailed explanation-2: -Proteins are polymers of amino acids, linked by amide groups known as peptide bonds. An amino acid can be thought of as having two components: a ‘backbone’, or ‘main chain’, composed of an ammonium group, an ‘alpha-carbon’, and a carboxylate, and a variable ‘side chain’ (in green below) bonded to the alpha-carbon.

Detailed explanation-3: -Proteins are natural polymer of −amino acids. A definite sequence of amino acids form a specific protein. Two or more than two amino acids bind to give peptide bond. Proteins are polypeptide, which loses its biological activity by physical or chemical changes.

Detailed explanation-4: -Peptide bonds are amide bonds between the -carboxyl group of one amino acid and the -amino group of another (Fig. 3-1).

Detailed explanation-5: -In protein molecules the -amino acids are linked to each other by peptide bonds between the amino group of one amino acid and the carboxyl group of its neighbour. The condensation (joining) of three amino acids yields the tripeptide.