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 amino acid has a carboxyl group and an amine group. Amino acids link to one another to form a chain by a dehydration reaction which joins the amine group of one amino acid to the carboxyl group of the next.Thus polypeptide chains have an end with an unbound carboxyl group, the C-terminus, and an end with an unbound amine group, the N-terminus.he convention for writing peptide sequences is to put the C-terminal end on the right and write the sequence from N-to C-terminus.