BIOL 2100 Chapter Notes - Chapter 9: Flavin Mononucleotide, Oxidizing Agent, Oxidative Phosphorylation
23 Sep 2016
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9. 1 catabolic pathways yield energy by oxidizing organic fuels. Catabolic pathways - release stored energy by breaking down complex molecules. Enzymes degrade complex molecules (rich in energy) to simpler molecules that have less energy. Energy released is either dissipated as heat or can be used to do work. Fermentation - degradation of organic fuel without the use of oxygen. Aerobic (cellular) respiration - degradation of organic fuel with the use of oxygen. More efficient than anaerobic respiration (the harvesting of chemical energy without the use of oxygen. Negative value means that products have lesser energy than the reactants and that the reaction is spontaneous (without an input of energy) The movement of electrons releases energy and this energy is used to synthesize atp. Reducing agent - the electron donor in a chemical reaction. Oxidizing agent - the electron acceptor in a chemical reaction.
