NEET Biology Plant Growth and Development / पौधे की वृद्धि और विकास Question Bank Self Evaluation Test - Plant Growth and Development

  • question_answer
    Etiolated seedlings are produced by germinating seeds and keeping them in total darkness. Under which of the following conditions will plants kept in the dark-begin to synthesise chlorophyll?

    A) After being given a pulse of blue light.

    B) After being given a pulse of red light.

    C) After being given a pulse of red light followed by a pulse of far-red light.

    D) After being given a pulse of far-red light followed by a pulse of red light.

    Correct Answer: C

    Solution :

    [c] The pulse of red light converts \[{{\operatorname{P}}_{r}}\]to\[{{\operatorname{P}}_{fr}}\]Subsequent pulses of far-red light stimulate changes that lead to chlorophyll synthesis.


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