Mechanism of Photosynthesis

Mechanism of Photosynthesis

Photosynthesis, occurring in chloroplasts, involves two main stages: light-dependent reactions and the Calvin Cycle. 

  • Light Absorption: Chlorophyll absorbs light, primarily in the blue and red spectrum. 
  • Water Splitting: In the light-dependent reactions, water is split into oxygen, protons, and electrons, generating ATP and NADPH. 
  • Carbon Fixation: The Calvin Cycle uses ATP and NADPH to fix carbon dioxide into organic molecules, ultimately producing glucose. 
  • Oxygen Release: Oxygen is released as a byproduct, crucial for aerobic respiration.