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NEET AIPMT SOLVED PAPER 2001

  • question_answer
                    Proteinaceous pigment which controls the activities concerned with light is:                       

    A)                 phytochrome   

    B)                 chlorophyll                         

    C)                 anthocyanin      

    D)                 carotcnoids

    Correct Answer: A

    Solution :

                    Phytochromes are plant chromatophores, containing protein pigment existing in two inter-convertible forms?\[{{P}^{r}}\] (absorbs red light, 660 nm) and \[{{P}_{fr}}\] (absorbs far red light-730 nm). It controls flowering, seed dormancy etc.


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