Light Independent

• What is the equation for photosynthesis?

  6CO2 + 6H2O --> C6H12O6 + 6O2
• Label the Calvin cycle:

  A) Rubisco

  B) Ribulose bisphosphate

  C) Glycerate 3-phospahte

  D) Triose phosphate

  E) Glucose

  F) Ribulose phosphate

  
• What happens at stage 1 of the Calvin cycle?

  Ribulose bisphosphate and carbon dioxide react to from two mole of glycerate 3-phosphate in the presence of the rubisco enzyme.

  
• What happens at stage 2 of the Calvin cycle?

  ATP provides the energy required for glycerate 3-phosphate to turn into triose phosphate while NADPH provides the electrons and protons required for this reaction.

  
• What happens at stage 3 of the Calvin cycle?

  Triose phosphate will then either turn into glucose or ribulose phosphate, it takes 6 rotations of the Calvin cycle to form one molecule of glucose. Additionally, ATP provides the inorganic phosphate required for the triose phosphate to turn into ribulose phosphate.

  
• What happens at stage 4 of the Calvin cycle?

  If the triose phosphate turns into ribulose phosphate then ATP will provide the energy required for it to react and turn into ribulose phosphate.