Respiration 3 5 10

Respiration 3 5 10 - Georgia Tech School of Biology An...

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Georgia Tech School of Biology Spring 2010 Biology 1510 An evolutionary approach to learning energy metabolism What metabolic pathways were present in the LUCA? Pathways common to all 3 domains Pathways found in organisms that live in environments that may have existed >3 billion years ago Redox reactions Chemiosmosis
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Georgia Tech School of Biology Spring 2010 Biology 1510 What metabolic pathways are common to all 3 domains of life? Substrate-level phosphorylation to make ATP Cellular Respiration Citric acid cycle Chemiosmosis Oxidative phosphorylation to make ATP
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Georgia Tech School of Biology Spring 2010 Biology 1510 Two ways to make ATP from ADP: small amounts of ATP are made by substrate-level phosphorylation
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Georgia Tech School of Biology Spring 2010 Biology 1510 Most ATP Is Made via Oxidative Phosphorylation Periplasmic space Rotor H + Stator Internal rod Cata- lytic knob ADP + P ATP i Cytoplasm F0 portion in membrane - resembles flagellar motor F1 portion (ATP synthase) -resembles DNA helicase See also: http://www.microbelibrary.org/images/Tterry/an im/ATPsynthbact.html http://www.youtube.com/watch?v=uOoHKCMAUMc
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Georgia Tech School of Biology Spring 2010 Biology 1510 Q: If cytoplasmic ATP concentration is high, and the extracellular H+ concentration is low, then
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This note was uploaded on 09/02/2010 for the course BIO 1510 taught by Professor Unknown during the Spring '07 term at Georgia Tech.

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Respiration 3 5 10 - Georgia Tech School of Biology An...

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