BIOL-UA 22 Lecture Notes - Lecture 3: Endergonic Reaction, Exergonic Reaction, Hexokinase
18 Mar 2016
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Lecture 3: metabolism i: glycolysis and the citric acid cycle. Caused by the production of co2 by burning organic molecules. Gasseslike octane, ehtanol, methane, hydrogen or carbohydrates. Ethanol vs. octane ethanol burns cleaner because it burns smaller number molecules of co2. Ethanol burns co2 which is then reabsorbed by corn performs photosynthesis. This makes hydrogen one of the best fuel/energy sources to limit co2 production in the atmosphere. Source of energy come from carbohydrates in form of: glucose, fructose and sucrose. 6 carbon sugars that produce 6 co2. C6h12o6 + 6 o2 6 co2 + 6 h2o. Not all organisms are in presence of oxygen, with limited amounts of oxygen therefore must perform anaerobic oxidation which is far less efficient. For every 1 molecule of glucose you burn the energy released is -686 kcal/mol. Must spread the energy across several molecules by slowly releasing energy in different chemical reactions. Releasing of energy or g< 0 is an exergonic reaction.
