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AIIMS AIIMS Solved Paper-2007

  • question_answer
    On the basis of symptoms of chlorosis in leaves a student inferred that this was due to deficiency of nitrogen. The inference could be correct only if we assume that yellowing of leaves appeared first in

    A) old leaves

    B) young leaves

    C) young leaves followed by mature leaves

    D) mature leaves followed by young leaves

    Correct Answer: A

    Solution :

    Chlorosis is appearance of yellow colour due to non-synthesis or destruction of chlorophyll. It cause due to deficiency of Mg, N, Fe, Ca, S. If chlorosis occur due to deficiency of nitrogen then first older leaves become yellow.


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