BIOL 112 Lecture Notes - Lecture 3: Buffer Solution, Hydroxy Group, Hydrolysis

• School: McGill University
• Department: Biology
• Course: BIOL 112
• Professor: Frieder Schoeck

Document Summary

Used to make solution resist changes in ph. React with acids and bases to do this. Buffers illustrate the law of mass action. More reactant added leads to acceleration of the reaction, and product removed leads to an acceleration of the reaction. Breaking p-o bonds releases great amounts of energy. Can form disulfide bonds contributing to a protein"s structure. Acts as a base, and often attracts protons. Aldehydes are on a terminal carbon, ketones are not. Acts as an acid, loses a proton in solution. Present in all living organisms, made in the same ways. Advantageous -organisms can acquire necessary biochemicals by consuming other organisms. R-h + oh (monomer) r-monomer + h2o. R- monomer-h + h-oh (water) r-h + oh-monomer-h. Biology: atp hydrolysis releases energy, covalent bond formation (or any anabolic reaction) requires energy. Chemistry: breaking chemical bonds releases energy, forming bonds requires energy. Range greatly in size e. g. a few aas vs. thousands.