Biology · Plant Physiology

Following are certain statements regarding nitrogen uptake and assimilation by plants: A. Plant roots can take up nitrogen in the form of NO 3 - or NH 4 + . B. NH 4 + taken up by plants can be directly assimilated into amino acids. C. Amino acids are synthesized exclusively in plastids and chloroplasts of roots and leaves, respectively. D. NO 3 - can be stored in the vacuole of both roots and leaves. Which one of the following combinations is correct?

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A, B and D

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