BIOL 1000 Chapter 6: Chapter 6.docx
21 Apr 2014
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Cellular respiration slowly oxidizes energy rich molecules, and extract potential energy and convert it to atp. Carbon hydrogen bonds that make it a good fuel molecule(abundance of hydrogen) Reduction is gain of electrons and oxidation is loss of electrons. Oxygen is often the molecules that receives the electron when fuel molecules get oxidized. This is because it has a high electronegativity which makes it ideal as the terminal electron acceptor of cellular respiration. Glucoses energy is slow released in different steps via enzyme catalyzed reactions. Dehydrogenases facilitate oxidation in glucose, it acts as an energy carrier or shuttle. Most common energy carrier is the nicotinamide adenine dinucleotide. Goal of cellular respiration is to transform potential energy found in food molecules into a form that can be used to make atp. Glycolysis enzymes break down a molecule of glucose into two molecules of pyruvate. Acetyl coa is formed fom the oxidation of pyruvate, then it is completely oxidized to co2.
