NFS 1049 Study Guide - Hydrophile, Corn Starch, Whey Protein
Document Summary
Physical properties: polymers (links) of amino acids joined by peptide bonds (connects acid end of one amino acid w/ amino end of another, referred to as polypeptides, conjugated or unconjugated. Unconjugated = not bound to any other substances and contain only amino acids. Conjugated = combined with non-protein substances such as a carbohydrates and/or lipids into complex molecules. Glycoprotein: protein + sugar (egg white ovalbumin and ovomucoid) Phosphoproteins: contain phosphate groups in their structure (milk casein) 4 levels of protein structure: these levels provide a description of what the polypeptide is composed of and its shape, primary, secondary refers to whether amino acids together assume the alpha helix or beta pleated. Linear sequence of amino acids in order within a polypeptide: tertiary sheet configuration within a polypeptide. achieved by the folding of the entire protein molecule. Describes the overall three dimensional shape: quaternary - more than one polypeptide chain in its spatial structure .
