Control a living-system model. Follow inputs and oxygen output over time.
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Illustrative gross photosynthesis model: rate = 20 × L/(L+20) × C/(C+20), where L and C are relative light and CO₂ settings. These chosen saturation constants are not measured plant parameters. Cumulative oxygen is the integral of the rate over model time. Water and temperature are held adequate and constant. Oxygen bubbles are visual model units, not a calibrated gas measurement. Respiration, temperature effects, growth, and resource depletion are not modeled. Photosynthesis releases oxygen from water; CO₂ supplies carbon for sugars.
Science background · OpenStax Biology 2e
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