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Nature & Animals

Which outcome occurs when excessive heat inhibits transpiration?

A)Potassium ions fail to accumulate
B)Stomata close restricting CO2 intake
C)Increased synthesis of chlorophyll occurs
D)Phloem uploading is increased in leaves

💡 Explanation

Stomata close to conserve water via cuticular transpiration, which is regulated by abscisic acid and reduces water loss because minimizing water potential is preferable than maximizing carbon dioxide uptake; therefore CO2 intake is reduced, rather than the other metabolic changes.

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