Energy_Tranformations

Energy_Tranformations - C 6 H 12 O 6 + 6O 2---------- 6CO 2...

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Energy Tranformations: laws of thermodynamics IMPORTANT REACTIONS AND MOLECULES: Redox Reactions: reduction : Addition of electrons to a molecule (stores energy in reduced compounds) oxidation : Removal of electrons from a molecule (releases energy from reduced compounds) These reactions always occur together: Energy Transporting Molecules: NAD NAD+ + 2H <------> NADH + H+ (NADox) (NADre) FAD FAD + 2H <------> FADH 2 (FADox) (FADre)
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Local transport and the cells energy currency ATP (Adenosine Triphosphate) ADP + Pi --------------> ATP ( G = +7.3 Kcal/mole) Two mechanisms for phosphorylation 1) Substrate level Phosphorylation: 2) Oxidative Phosphorylation: CATABOLISM OF GLUCOSE: Summary equation:
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Unformatted text preview: C 6 H 12 O 6 + 6O 2---------- 6CO 2 + 6H 2 O G=-686 Kcal/mole oxidation of glucose: removal of electrons (hydrogen electrons, often w/protons H+) How Do you make ATP ATP Synthase The chemiosmotic gradient is both a concentration gradient and a voltage gradient . This results in a large free energy gradient Where do the reduced molecules come from? Kreb's Cycle (Citric Acid Cycle) Where does the pyruvic acid come from? GLYCOLYSIS: FERMENTATION: if no oxygen is present ATP YIELD FROM GLUCOSE BREAKDOWN: 1) Single molecule: anaerobic aerobic Interconversion of Food Stuffs: Other Sugars and Carbohydrates: Lipids: Proteins:...
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This note was uploaded on 02/14/2011 for the course BIOL 1201 taught by Professor Wishtichusen during the Spring '07 term at LSU.

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Energy_Tranformations - C 6 H 12 O 6 + 6O 2---------- 6CO 2...

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