A student investigated the effect of light intensity on the rate of photosynthesis in pondweed (Elodea).
Table 1 shows the results of this investigation.
| Light intensity (arbitrary units) | Volume of oxygen gas collected in 10 minutes (mm3\text{mm}^3mm3) |
|---|---|
| 5 | 12 |
| 10 | 25 |
| 20 | 51 |
| 30 | 72 |
| 40 | 85 |
| 50 | 85 |
Use information from Table 1 to describe the effect of light intensity on the rate of photosynthesis.
