IndietroPhotosynthesis: Key Concepts and Processes
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Corpo
Summary Table: Key Steps in Photosynthesis
Stage | Main Events | Products |
|---|---|---|
Light Reactions | Absorption of light, electron transport, photolysis of water | ATP, NADPH, O2 |
Calvin Cycle | Carbon fixation, reduction, regeneration of RuBP | G3P (sugar), ADP, NADP+ |
Life Depends on Photosynthesis
Autotrophy and Food Webs
Green plants are autotrophs, meaning they produce their own food through photosynthesis. They form the base of most food webs, supporting heterotrophic organisms.
Additional info:
Photosynthesis is essential for the cycling of carbon and oxygen in the biosphere.
Both ATP and NADPH produced in the light reactions are consumed in the Calvin cycle.
Three turns of the Calvin cycle are required to produce one molecule of G3P.
