BCECE Medical BCECE Medical Solved Papers-2011

  • question_answer
    A person supplied excess fertilizers and watered the plants well. After sometime, the leaves turn brown because

    A)  exosmosis occurs in root and the plant dies

    B)  fertilizer is drained in lower layer of soil

    C)  it decreases photosynthesis

    D)  due to water logging soil

    Correct Answer: A

    Solution :

    After adding excess of fertilizer and irrigation in grass field, the outer soil solution becomes hypertonic and hence exosmosis occurs which leads to plasmolysis of cells. Hence, wilting occurs which leads to drying and browning of leaves.


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