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← Nature & AnimalsWhich outcome occurs when a plant's glutamine synthetase is inhibited?
A)Ammonia accumulates in plant tissues✓
B)Nitrate breakdown accelerates significantly
C)Root nodule formation increases abruptly
D)Xylem loading of amino acids stops
💡 Explanation
Ammonia accumulates because nitrogen assimilation stalls; glutamine synthetase catalyzes ammonia's conversion to glutamine via nitrogen fixation. Therefore, ammonia increases, rather than nitrate increasing or amino acid translocation occurring which require functional synthetase activity.
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