Lect11 - Lecture 11 Chloroplast and Photosynthesis (II) 0...

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0 Lecture 11 Chloroplast and Photosynthesis (II)
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1 Summary: Z scheme of photosynthesis
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2 Important concepts 1. Understand how proton gradient is used to synthesize ATP in plant Note the difference between proton-motive force in plant and animal 2. Explain what cyclic photophosphorylation is 3. Balance sheet of photon/ATP 4. Understand how pigments absorb lights
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3
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4 Andre Jagendorf’s demonstration
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5 ATP formation is driven by a proton-motive force Thylakoid membrane is permeable to Cl - and Mg 2+ Electrical neutrality is maintained [H + ] concentration has a major contribution (chemical potential) to proton-motive force
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6 Important concepts 1. Understand how proton gradient is used to synthesize ATP in plant Note the difference between proton-motive force in plant and animal 2. Explain what cyclic photophosphorylation is 3. Balance sheet of photon/ATP 4. Understand how pigments absorb lights
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7 Cyclic photophosphorylation When NADPH/NADP + is high , not enough NADP + to accept e - Only PSI involved
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8 Cyclic photophosphorylation No NADPH is generated Proton gradient => ATP synthesis No O 2 is formed
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This note was uploaded on 03/04/2012 for the course CHEM 114B taught by Professor Wang during the Spring '09 term at UCSD.

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Lect11 - Lecture 11 Chloroplast and Photosynthesis (II) 0...

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