BIO 201 Lecture 24: Lecture 24 -The Calvin Cycle & Review

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Lecture 24: the calvin cycle & review (ch. The calvin cycle: makes sugar from co2 using energy of atp and reducing power of nadph: carbon fixation, reduction reactions, regeneration of rubp. G3p( mostly transported out of the chloroplast to make glucose and other sugars. Takes co2 from atmosphere, incorporates into organic molecules. Catalyzed by rubisco (most abundant protein on the planet) 10 out of 12 gsp (3c) used to regenerate 6 molecules of rubp (5c) The other 2 g3p exported out of chloroplast to make glucose stored as starch. G3p can also be used directly in glycolysis. Sunlight + adp + nadp+ + h2o atp + nadph + o2. Co2 + atp + nadph g3p + adp + nadp+ With glucose synthesis: 6 co2 + 6h2o c6h12o6 + 6o2. The calvin cycle reactions use the energy from atp and nadph to reduce co2 to g3p. Only 1 in 6 g3p molecules is used to make sugars.

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