Photosynthesis Process Diagram: Light Reactions & Calvin Cycle Explained #1688786 (License: Personal Use)

This educational illustration details the two main stages of oxygenic photosynthesis: the light-dependent reactions in thylakoid membranes (Photosystem II → electron transport chain → Photosystem I → NADPH and ATP generation) and the light-independent Calvin cycle in the stroma (CO₂ fixation into sugars using ATP and NADPH). Key components include water splitting, O₂ release, proton gradient formation, and chemiosmotic ATP synthesis via the ATP synthase enzyme. The diagram emphasizes energy conversion from light to chemical bonds.

Used in biology education (high school to undergraduate), textbook figures, online learning modules, and science outreach to explain photosynthetic mechanisms. Matches user intent for visual understanding of how plants convert light, water, and CO₂ into energy-rich molecules.