BI-2053
Factors affecting photosynthesis
Biology · Secondary 4 · Hard · Factors affecting photosynthesis
A leaf is placed in bright light at a constant temperature. The carbon dioxide concentration around the leaf is gradually increased.
Which graph shows how the rate of photosynthesis changes with carbon dioxide concentration?
Which graph shows how the rate of photosynthesis changes with carbon dioxide concentration?
- Rate stays constant as CO₂ concentration increases
- Rate decreases steadily as CO₂ concentration increases
- Rate increases then remains constant at higher CO₂ concentrations
- Rate increases then decreases back to zero at higher CO₂ concentrations
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