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Unformatted text preview: or moved on to do work. • When a pigment molecule absorbs a photon of light, an electron in the pigment molecule is raised to an excited state with a higher energy level. • What converts ADP to ATP is adding a phosphate. The electron cannot transfer the excess energy to ADP to form ATP. • Chloroplasts are found in light harvesting complexes within the photosystem. • The electron hole needs to be filled up. The incoming electrons come from water. • The electron goes to the primary electron acceptor and it has a high potential energy. • It then goes into the electron transport chain. It falls downhill and it is a series of redox reactions. It is exergonic and powers protein gradients. • They fall down again and it goes into an electron carrier. It is NADPH. • Watch Dr. Moon’s video on photosynthesis for class on Friday. • We need to draw the movement of electrons between two photosystems....
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This note was uploaded on 02/21/2012 for the course BIO 311 C taught by Professor Mcclelland during the Fall '09 term at University of Texas.
- Fall '09