ISCI 101 Lecture Notes - Lecture 19: Egg White, Relative Permittivity, Glycogen
19 Apr 2016
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They make up muscles, tendons, skin, hair, enzymes, hemoglobin, antibodies, & matrix of bone. Bonding between two amino acids: h bonds with oh, forms h2o, forms peptide bond. Polypeptides: long, linear polymeric chains of amino acids linked by peptide bond. Proteins: molecules that consist of one or more polypeptide chains. Amino acids can undergo condensation reactions in any order, thus making it possible to form large numbers of proteins. Protein: the machinery of life: life is the mode of existence of proteins. Most enzymes are proteins (tertiary & quaternary structures) Enzymes work by weakening bonds which lower activation energy. Enzymes are globular proteins with unique 3d shapes which catalyze chemical reaction in living systems. Enzyme function is very specific: lock & key model. Lactose intolerance: the inability to metabolize lactose because of a lack of the required enzyme lactase in the digestive system. Heat: hydrogen bonds are broken by increased energy (coagulation of egg white albumin on.
