← All virtual labsMR. ALEXANDER’S CLASS · INTERACTIVE SCIENCE

Photosynthesis Lab

Control a living-system model. Follow inputs and oxygen output over time.

Model time: 0

Click an object to inspect it · Pause to examine a moment · Step advances one model unit

Model paused. Choose settings, then press Play.

Evidence notebook

Snapshots and notes save in this browser on this device. Running model state resets on reload. Export before using a shared device.

How this model works · Assumptions and limitations

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

Record snapshots and use the evidence notebook to explain your results.