The Calvin Cycle Step 1 Carbon Fixation

The Calvin Cycle Step 1 Carbon Fixation

3 Molecules of CO2 enter the cycle

3 Molecules of CO2 enter the cycle

Each join a 5 Carbon RUBP and Immediately SPLIT--->Into

6 3 Carbon PGA

Each join a 5 Carbon RUBP and Immediately SPLIT--->Into

6 3 Carbon PGA

Step 2 PGAL SynthesisStep 2 PGAL Synthesis

The 6 Molecules of PGA Change into 6 Molecules of PGAL

ATP is used for this step for energyATP---->ADP + P + energyNADPH is also used for H+ and e--NADPH---> NADP+ + H+ + 2e-

The 6 Molecules of PGA Change into 6 Molecules of PGAL

ATP is used for this step for energyATP---->ADP + P + energyNADPH is also used for H+ and e--NADPH---> NADP+ + H+ + 2e-

1 PGAL is used to make Glucose (2 are needed for 1 Glucose)

The remaining 5 are used to make RUBP

1 PGAL is used to make Glucose (2 are needed for 1 Glucose)

The remaining 5 are used to make RUBP

Step 3 Regeneration of RUBP

Step 3 Regeneration of RUBP

RUBP is regenerated by re-arranging the remaining 5 PGALS

RUBP is regenerated by re-arranging the remaining 5 PGALS