Aprotein is a large polypeptide. polypeptides are polymers of amino acids joined together through a special type of bond: the peptide bond. understanding the chemistry and properties of the peptide bond is fundamental to understanding protein structure (and function). first, identify the n- and c-termini of the peptide. then, identify those bonds that comprise the peptide bond for each labeled bond. finally, determine the number of amino acids in the peptide depicted.

How does the digestive system interact with the circulatory system? a. messages sent as electrical impulses from the digestive system are transported throughout the body by the circulatory system. b. nutrients taken in and broken down by the digestive system are carried to various parts of the body by the circulatory system. c. nutrients and gases are absorbed by organs in the circulatory system. then, they are transported to all parts of the body by organs in the digestive system. d. oxygen and carbon dioxide are exchanged by organs in the digestive system, and the gases are carried to the rest of the body by the circulatory system.