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The Calvin Cycle Step 1 Carbon Fixation

The Calvin Cycle Step 1 Carbon Fixation. 3 Molecules of CO2 enter the cycle. Each join a 5 Carbon RUBP and Immediately SPLIT--->Into 6 3 Carbon PGA. Step 2 PGAL Synthesis. The 6 Molecules of PGA Change into 6 Molecules of PGAL ATP is used for this step for energy ATP---->ADP + P + energy

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The Calvin Cycle Step 1 Carbon Fixation

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  1. The Calvin Cycle Step 1 Carbon Fixation

  2. 3 Molecules of CO2 enter the cycle

  3. Each join a 5 Carbon RUBP and Immediately SPLIT--->Into • 6 3 Carbon PGA

  4. Step 2 PGAL Synthesis • The 6 Molecules of PGA • Change into 6 Molecules of PGAL • ATP is used for this step for energy • ATP---->ADP + P + energy • NADPH is also used for H+ and e-- • NADPH---> NADP+ + H+ + 2e-

  5. 1 PGAL is used to make Glucose • (2 are needed for 1 Glucose) • The remaining 5 are used to make RUBP

  6. Step 3 Regeneration of RUBP • RUBP is regenerated by re-arranging the remaining 5 PGALS

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