RAJASTHAN PMT Rajasthan - PMT Solved Paper-2007

  • question_answer
    Which pigment absorbs the red and far red light?

    A)  Cytochrome    

    B)         Phytochrome

    C)  Carotenoids                     

    D)  Chlorophyll

    Correct Answer: B

    Solution :

    Phytochrome is a regulatory pigment which regulates many light-dependent developmental processes. It exists in two in terconvertible forms-\[{{\text{P}}_{\text{FR}}}\,\,\,\,\,\,\text{or}\,\,\,\,\,\,\,{{\text{P}}_{\text{730}}}\] (absorbs far-red light) and \[{{\text{P}}_{\text{R}}}\,\,\,\,\,\,\text{or}\,\,\,\,\,\,\,{{\text{P}}_{\text{660}}}\] (absorbs red light).


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