Calvin Cycle - Calvin Cycle Calvin cycle - aka C3...

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Calvin Cycle Calvin cycle - aka C3 photosynthesis creates organic molecules from CO2 uses ATP (from cyclic/noncyclic photophosphorylation) to power endergonic reactions uses reducing power of NADPH to attach H to C atoms carbon fixation - CO2 binds to ribulose 1,5-biphosphate (RuBP) o RuBP - 5-carbon sugar made from reassembling bonds of fructose 6-phosphate and glyceraldehyde 3-phosphate o forms 2 molecules of 3-phosphoglycerate (PGA) o process catalyzed by rubisco (ribulose biphosphate carboxylase/oxygenase) 3 CO2 + 9 ATP + 6 NADPH + water >> glyceraldehydes 3-phosphate + 8 P + 9 ADP + 6 NADP+ w/ 3 turns of Calvin cycle, 3 CO2 enters, 3 RuBP regenerated, 1 glyceraldehyde 3- phosphate created uses enzymes that functions best under light glyceraldehydes 3-phosphate - 3-carbon sugar that can be converted to fructose 6- phosphate and glucose 1-phosphate in cytoplasm w/ reversed glycolysis reactions glucose 1-phosphates combined into insoluble polymer as starch when there’s high levels
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Calvin Cycle - Calvin Cycle Calvin cycle - aka C3...

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