BI-2092
Factors affecting photosynthesis
Biology · Secondary 4 · Medium · Factors affecting photosynthesis
A scientist measures the rate of photosynthesis in a plant at different light intensities while keeping temperature and carbon dioxide concentration constant. The rate increases at first, then levels off even when light intensity is increased further. What is the best explanation?
- Another factor such as carbon dioxide concentration becomes limiting.
- The chlorophyll in the leaves is used up completely.
- The plant stops absorbing light at high light intensities.
- Light intensity no longer reaches the chloroplasts at higher values.
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