Chapter 9 Cellular Respiration

Chapter 9 Cellular Respiration - Chapter 9 Cellular...

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Chapter 9 Cellular Respiration Catabolic Pathways and Production of ATP - Starting with glucose or other organic molecules and using O 2 cellular respiration yields H 2 O, CO 2 and energy in the form of ATP and heat. - Catabolic pathways release the energy stored in complex organic molecules - The breakdown of glucose and other organic fuels is exergonic (spontaneous) - Two types of Catabolic pathways are cellular respiration and fermentation Redox Reactions: Oxidation and Reduction - Redox reactions release energy stored in food molecules (organic molecules) by transporting electrons from one reactant to another using oxidation or reduction - Oxidation – losses electrons - Reduction – gains electrons - During cellular respiration glucose is oxidized to Carbon Dioxide; and oxygen is reduced to water - C 6 H 12 O 6 + 6O 2 6CO 2 + 6H 2 O + Energy (ATP + Heat) - Electrons lose potential energy during their transfer from organic compounds to oxygen (oxygen is more electronegative) -
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