lecture 9 - E Flow - Objectives Explain how E flows through...

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Objectives Explain how E flows through biological systems Review why ATP is such a high E molecule, and describe how it provides E in reactions Explain a Redox reaction; explain which atom is oxidized and which is reduced Describe how glucose is used as an E source
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I. Energy Flow A. 1 st law of thermodynamics: Result: NPP = net primary productivity = reproduction and growth material in photosynthesizers (pns) that is available to others NPP used as chemical E
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A. 1 st law of thermodynamics NPP used as chem E by -primary decomposers -primary consumers E passed through tropic levels What happens to E at the top trophic level; how much biomass at top compared to bottom? What happens to E that is consumed? How is E stored in an organism? What currency is used in cells?
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ATP B. ATP is Energy currency - nucleotide with additional phosphates have high PE… WHY? -look at P group, P bonded to 4 O atoms -one double bond – held tight -one single bond to another molecule -two single bonds with a (-) charge
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This note was uploaded on 11/20/2011 for the course BIOLOGY 101 taught by Professor Freeman during the Spring '11 term at Gustavus Adolphus College.

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lecture 9 - E Flow - Objectives Explain how E flows through...

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