Significance of Calvin Cycle.

The Significance of calvin Cycle is as follows.

  • It is the main biochemical pathway during the dark reaction(Phase -II) of photosynthesis.
  • It results in the synthesis of carbohydrates from CO(assimilation of carbon).
  • It depends on the light  reaction (Phase-I) for the supply of the assimiatory power (ATP and NADPH2) required for carbon assimilation.
  • It stores the ATP energy formed during light reaction in the carbohydrate molecules as the food energy.
  • It is the primary source of organic food and food energy for all the organisms.
  • Calvin Cycle(C-3 cycle) reaction occur in all photosynthetic plants i.e. C-3, C-4 and CAM plants, during the dark phase of photosynthesis.