Represents the entire Microsoft Excel application. The Application object contains: Application-wide settings and options (many of the options in the Options dialog box (Tools menu), for example). Methods that return top-level objects, such as ActiveCell, ActiveSheet, and so on.
Proteins consist of one or more of these polypeptide chains. The primary structure of a protein is known as a polypeptide. From the two terminals of the polypeptide chain, N-terminus is where the amino group is free, and the c-terminus is where the carboxyl group is free. Polypeptides are synthesized at ribosomes.The amino acid sequence in the polypeptide chain is determined by the codons in mRNA. Protein. Proteins are one of the most important types of macromolecules in living organisms.he primary structure of a protein is known as a polypeptide. From the two terminals of the polypeptide chain, N-terminus is where the amino group is free, and the c-terminus is where the carboxyl group is free. Polypeptides are synthesized at ribosomes.
Each polypeptide chain is comprised of 141 to 146 amino acids each. The sequence and number of amino acids is determined by structural genes. Variations in amino acid sequence give rise to different types of polypeptide chains. Production of heme and globin combine to form hemoglobin molecule.