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.
Tertiary structure. The three-dimensional structure of a protein. A polypeptide is a molecule made from a large number of amino acids joined by condensation. This polypeptide is folded to form a protein. Some sections of the polypeptide coil and fold to produce the secondary structure of the protein. The whole protein then folds into a specific three-dimensional shape known as the tertiary structure.