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← Nature & AnimalsWhich biochemical consequence arises from a rainforest canopy plant's over-reliance on C3 photosynthetic pathways during prolonged cloud cover exhibiting slow photosynthetic induction?
A)Enhanced light-independent reactions at night
B)Increased rate of noncyclic photophosphorylation
C)Photorespiration leading to carbon loss✓
D)Accumulation of ATP via cyclic electron flow
💡 Explanation
Photorespiration causes carbon loss because during slow photosynthetic induction and reduced irradiance, RuBisCO oxygenates RuBP rather than carboxylating it, therefore carbon fixation decreases because it's happening relatively less often, rather than increasing carbohydrate production instead.
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