BIOL 4087 Lecture : BIOCHEMISTRY FINAL NOTES
Document Summary
Photosynthesis: co2, h2o --------> sucrose (starch), o2, process is responsible for life on earth. Photosynthetic electron transport: 2 h2o + 2 nadp+ o2 + 2 nadph + 2 h, unfavorable reaction needs to be driven using light, mitochondria is in the opposite direction. How do you drive a reaction using light: pigments absorb light, chlorophyll a + b (chlorin) be able to recognize structure of chlorophyll, accessory pigments, carotenoids, -carotene, lutein. Light harvesting complex (figure 19-53: lhc ii, non-radiative energy transfer, efficient light absorption, funnel light into reaction center. Rhodopseudomonas viridis (bacterial: quinones, special pair chlorophyll, pheophytin chlorophyll without magnesium ips induced plutipotent stem cells, sickle cell anemia. Scid: z scheme (figure 19-56, h2o oxygen-evolving complex photosystem ii plastoquinone . Cytochrome b6f complex plastocyanin photosystem i ferredoxin . Photosystem ii: p680 special pair chlorophyll, 2 h2o + 2 pq o2 + 2 pqh2, pq = plastoquinone. Oxygen-evolving complex: mn4, 2 h2o 4 e- + 4 h+ + o2, opec.
