It seems there might be a small typo in your question where "auction" likely should be "oxygen." If you're asking about how plants recycle oxygen during photosynthesis, here's a comprehensive overview:
During photosynthesis, plants convert carbon dioxide and water into glucose and oxygen using sunlight as energy. This process mostly occurs in the chloroplasts of plant cells, where chlorophyll (the green pigment) captures light energy. Photosynthesis can be divided into two main stages: the light-dependent reactions and the light-independent reactions (Calvin cycle).
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Light-dependent Reactions:
- These reactions occur in the thylakoid membranes of the chloroplasts.
- Chlorophyll absorbs sunlight, which energizes electrons and splits water molecules (H₂O) into oxygen (O₂), protons (H⁺), and electrons (e⁻).
- The overall reaction for water splitting is: \[ 2 H₂O \rightarrow 4 H^+ + 4 e^- + O₂ \]
- The oxygen produced is released into the atmosphere as a byproduct.
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Light-independent Reactions (Calvin cycle):
- These reactions take place in the stroma of the chloroplasts.
- The energized electrons and protons from the light-dependent reactions, along with carbon dioxide (CO₂) from the atmosphere, are used to synthesize glucose (C₆H₁₂O₆).
- The overall process captures energy in the form of chemical bonds in glucose.
In terms of recycling, while plants don't "recycle" oxygen in a literal sense during photosynthesis, they do contribute to the larger global oxygen cycle. Oxygen released by plants during photosynthesis is consumed by animals and humans during respiration, which in turn produces carbon dioxide that plants can use for photosynthesis, thus creating a continual cycle.
If you meant something different by "auction," please clarify, and I will be happy to assist further!