Multiple Choice
Refer to the graph below showing results from experiments in which uptake of carbon dioxide by a leaf was measured as the leaf was irradiated with different quantities of light.The experiments were repeated at different levels of carbon dioxide in the air surrounding the leaf, to give the three curves.
The rate of photosynthesis is increased at all three levels of carbon dioxide.Which causes are consistent with these data?
A) Increases in both light and carbon dioxide
B) Decreases in both light and carbon dioxide
C) Increases in light and decreases in carbon dioxide
D) Increases in carbon dioxide and decreases in light
E) Increases in light only
Correct Answer:

Verified
Correct Answer:
Verified
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