Week3-centraldogma-160524-TH.ppt - Cellular metabolism Metabolism A balanced use of molecules in energy flow through cells ATP adenosine triphosphate

Week3-centraldogma-160524-TH.ppt - Cellular metabolism...

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Cellular metabolism Cellular metabolism
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Metabolism Metabolism
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A balanced use of molecules in energy flow through cells
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ATP, adenosine triphosphate ATP, adenosine triphosphate the energy currency of cell$ the energy currency of cell$ Energy to do other ‘stuff’
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What is cellular respiration? What is cellular respiration? • The energy in glucose is in the form of its covalent bonds – if they are broken, energy is released and can be captured for another purpose C 6 H 12 O 6 + 6O 2 6CO 2 + 6H 2 O + Energy (Energy = ~40% as ATP + 60% lost as heat) Plants can perform the forward and reverse reaction Production of ATP in a celli s in mitochondria This is done in many, many steps: Glycolysis Citric acid cycle Electron transport chain
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What other molecules besides glucose What other molecules besides glucose can be used in cellular respiration? can be used in cellular respiration? Other carbohydrates Proteins, although they are rarely used this way Lipids (~2X the calories or ATP produced versus same amount carbs or proteins)
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  • Spring '10
  • MarkLechner

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