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← Nature & AnimalsWhich outcome occurs when heat increases transpiration demand, exceeding xylem supply?
A)Stomata close, limiting carbon dioxide intake✓
B)Increased root growth due to osmotic pressure
C)Enhanced photosynthetic enzyme production
D)Accelerated synthesis of cellulose polymers
💡 Explanation
Stomata close because heat increases transpiration. Osmotic regulation, rather than photosynthesis balances water, through abscisic acid signaling; this causes the stomatal pore to close, therefore limits Co2 diffusion for photosynthesis, rather than any other adjustment.
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