BI-2000
Factors affecting photosynthesis
Biology · Secondary 4 · Hard · Factors affecting photosynthesis
A student investigates the effect of light intensity on the rate of photosynthesis in an aquatic plant by counting bubbles of oxygen produced per minute. The results are:
Distance from lamp: 10 cm → 40 bubbles/min
20 cm → 25 bubbles/min
30 cm → 15 bubbles/min
Which factor is limiting photosynthesis at 30 cm?
Distance from lamp: 10 cm → 40 bubbles/min
20 cm → 25 bubbles/min
30 cm → 15 bubbles/min
Which factor is limiting photosynthesis at 30 cm?
- Light intensity
- Carbon dioxide concentration
- Chlorophyll amount
- Water availability
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