CHAPTER 8

CHAPTER 8 - CHAPTER 8 HOW CELLS MAKE ATP ENERGY-RELEASING...

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CHAPTER 8 – HOW CELLS MAKE ATP: ENERGY-RELEASING PATHWAYS Catabolism o Process that releases energy by splitting complex molecules into smaller compounds Anabolism o The synthesis of complex molecules from simpler building blocks REDOX REACTIONS Aerobic respiration o A form of cellular respiration requiring molecular oxygen (O2) o C6H12O6 + 6 O2 + 6 H2O 6 CO2 + 12 H2O + energy (in the chemical bonds of ATP) THE FOUR STAGES OF AEROBIC RESPIRATION Dehydrogenations o Reactions in which two hydrogen atoms are removed from the substrate and transferred to NAD(+) or FAD Decarboxylations o Reactions in which part of a carboxyl group is removed from the substrate as a molecule of CO2 In glycolysis, glucose yields two pyruvates Glycolysis o A process in which a glucose molecule consisting of six carbons is converted to two molecules of pyruvate o Takes place in the cytosol o Has a net yield of two ATP molecules and two NADH molecules Pyruvate o A three carbon molecule The first phase of glycolysis requires an investment of ATP Energy investment phase Phosphorylation reactions o A phosphate group is transferred from ATP to glucose Sugar is then broken down into two 3 carbon sugars
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This note was uploaded on 04/04/2008 for the course BIO 101 taught by Professor Martin during the Fall '08 term at Rutgers.

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CHAPTER 8 - CHAPTER 8 HOW CELLS MAKE ATP ENERGY-RELEASING...

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