BI-802
Factors affecting photosynthesis
Biology · Secondary 3 · Hard · Factors affecting photosynthesis
A student investigates the effect of carbon dioxide concentration on the rate of photosynthesis of an aquatic plant at constant light intensity and temperature. When CO
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concentration is doubled, the rate of photosynthesis increases, but when it is tripled, the rate stays the same. What is the best explanation?
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2
concentration is doubled, the rate of photosynthesis increases, but when it is tripled, the rate stays the same. What is the best explanation?
- Another factor has become limiting at higher CO
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concentration - The plant has run out of chlorophyll
- CO
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is no longer needed for photosynthesis - The plant stops absorbing light at high CO
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concentration
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