BI110 Lecture Notes - Lecture 22: Disaccharide, Rubisco, Starch
Document Summary
Module 30: photosythesis ii - energy and sugars. Chlorophyll a is moved through the reactions center complex. Photosystem i: absorbs 700 nm light waves (p700) Photosystem ii: absorbs 680 nm light waves (p680) Photosystem ii e- in p680 raised from ground state to excited state p680* P680* oxidized to p680* by primary e- acceptor pheophytin (pheo) P680* can be oxidized (give up neg charge electron to pheo) to turn into p680+ P680 is reformed when p680+ gains an e- from oxidation of h20. Water splitting complex (where the oxidation of water to oxygen takes place) Linear electron transport 1 oxidation of p680 in photosystem ii. Absorption of light by ps ii results in formation of p680* P680* oxidized to p680+ by primary e- acceptor pheo. Electron given up by chlorophyll and transferred to pq is replaced by oxidation of water. Pq also takes a h+ from stroma, migrates thru lipid bilayer.
