BI-2040
Factors affecting photosynthesis
Biology · Secondary 4 · Medium · Factors affecting photosynthesis
A student shines light of different intensities on a water plant and counts the number of bubbles produced per minute as a measure of the rate of photosynthesis. At low light intensity, increasing the light intensity increases the bubble rate. At high light intensity, further increases do not change the bubble rate. What is the limiting factor at the highest light intensity?
- Light intensity
- Carbon dioxide concentration
- Chlorophyll concentration
- Water temperature
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