Answer:
Proteins differ from one another because the sequence of amino acids in the polypeptide chain differs from protein to protein.
Step-by-step explanation:
The sequence of amino acids in its polypeptide chain. The proteins differ from each other in their variety , number and order of their constituent amino acids linked by peptide bonds only. Each protein has a distinct structure of its own. These interactions may be interfered with if a protein's environment undergoes changes in temperature or pH or if it is exposed to chemicals. If this occurs, the protein may lose its three-dimensional structure and revert to being an unstructured string of amino acids. Proteins are composed of amino acids that differ from one another, unlike carbohydrates, which have the same repeating units. Twenty different types of naturally occurring amino acids are combined in various sequences to create the various proteins. Therefore, the primary way that proteins differ from one another is in the order of their amino acids, which is determined by the nucleotide sequence of their genes and often causes a protein to fold into a certain 3D shape that controls its function.
Thank you,
Eddie