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Biology
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Biology Practice
Eight questions, choices shuffled. Results feed your honest score projection.
Question 1 of 8
0
Which best explains why the light-independent reactions cannot proceed indefinitely in the dark?
A
They depend on ATP and NADPH produced by the light reactions
B
CO₂ is unavailable at night
C
The Calvin cycle only runs in guard cells
D
RuBisCO denatures in darkness