LIFESCI 2 Chapter Notes - Chapter 3: Amylopectin, Oligosaccharide, Mannose
Document Summary
An important advantage of biochemical unity is that some organisms can acquire needed raw materials by eating other organisms. each type of macromolecule performs one or more functions such as energy storage, structural support, catalysis (speeding up of chemical reactions), transport of molecules, regulation of other molecules, defense, movement, or information storage. When amino acids polymerize, the carboxyl and amino groups attached to the carbon are the reactive groups. the carboxyl group of one amino acid reacts with the amino group of another , undergoing a condensation reaction that forms a peptide linkage (or peptide bond). the beginning of a polypeptide is the amino group of the first amino acid added to the chain and is known as the. Ionic attractions can form between positively and negatively charged side chains, forming s alt bridges between amino acids. salt bridges can be near the surfaces of polypeptides or buried deep within a protein, away from water.
