01:119:115 Lecture Notes - Lecture 9: Accessory Pigment, Photosynthetic Reaction Centre, Thylakoid
1 Dec 2017
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Comprehend the interactions between light and electrons. When a molecule absorbs a photon of light e . Compare and contrast the components of chloroplasts. Redox process: water is oxidized and co2 is reduced. Endergonic process-> e boost from light e. Linear electron flow: the light-harvesting complexes: ~250 chlorophyll molecules + accessory pigments + proteins. Transfer e of photons to the reaction center: the reaction center complex: Atp is released into stroma (same as in cellular respiration!) Evaluate the impact of variability on photosynthesis. E- becomes energized-> shifts from lower e orbital to higher e: return to lower e orbital , leave atom . Recognize and recreate the calvin cycle. 13 reactions in series: each catalyzed by an enzyme c fixation method used by most plants. Each cycle has 3 phases: carbon fixation (catalyzed by rubisco, reduction, regeneration of the co2 acceptor (rubp) Using 6 atp-> bi-phosphoglycerate -> then 6 nadph -> .
