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← Nature & AnimalsWhich metabolic shift occurs when limitations affect rainforest plant stomata?
A)Nitrogen fixation rate increases drastically
B)Photorespiration rate significantly increases internally✓
C)ATP production immediately reaches zero
D)Transpiration efficiency reaches its theoretical limit
💡 Explanation
Increased photorespiration results from CO₂ depletion because stomatal closure causes internal oxygen build-up and Rubisco binds oxygen rather than CO₂; therefore photorespiration increases, rather than optimizing ATP production or transpiration.
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