BI-2080
Factors affecting photosynthesis
Biology · Secondary 4 · Hard · Factors affecting photosynthesis
A student investigates how light intensity affects the rate of photosynthesis in pondweed. She increases light intensity until the rate stops increasing and becomes constant. Which is the most likely explanation?
- Another factor such as carbon dioxide concentration becomes limiting.
- Chlorophyll is destroyed at high light intensity.
- Water is no longer needed for photosynthesis at high light intensity.
- Light stops being absorbed by chlorophyll at high light intensity.
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