Describe5 marksChallenge
A student investigated the effect of light intensity on the rate of photosynthesis in an aquatic plant (Elodea canadensis). The plant was placed in a beaker of water at a constant temperature of 20°C. The number of oxygen bubbles released per minute was counted at different light intensities. The results are shown in the table.
| Light intensity (arbitrary units) | Bubbles per minute |
|---|---|
| 0 | 0 |
| 5 | 2 |
| 10 | 5 |
| 15 | 8 |
| 20 | 10 |
| 25 | 11 |
| 30 | 11 |
Describe the relationship between light intensity and the rate of oxygen bubble production. Explain why the rate plateaus at higher light intensities.