Chapter 10 lecture notes

Molecules water energy source chemical energy in food

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Unformatted text preview: other splinng of water to make O2 Photo System II plastoquinone 2e ­ Photo System I plastocyanin 2e ­ Step 3a P700+ Chemiosmosis e ­ e ­ Photon P680 Step 4 Step 3b Light energy is also transferred via light harves>ng complex pigments to PSI reac>on center Photo excited electron is transferred to primary acceptor crea>ng P700+ P700+ accepts electrons from the boCom of the electron transport chain of PSII becomes P700 Photo System I Note: In Photosystem I, the 2e ­ transfer of electrons down the ferredoxin electron transport chain does not create a proton gradient and does Step 5 not generate ATP Review: * * e ­ e ­ Summary of electron flow during the light reacBon Reducing Power Chemical Energy Key Points: •  Light reac>on uses solar power to generate ATP and NADPH •  * th these molecules provide the chemical energy (atp) and reducing power (NADPH) needed for carbo...
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This document was uploaded on 02/10/2014.

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