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NEET Biology Plant Kingdom Question Bank Critical Thinking

  • question_answer
    Make correct pair                                                          [RPMT 1997] A.        Cyanophyceae                         a.     Green colour B.        Chlorophyceae                         b.    Blue green colour C.        Phaeophyceae                          c.     Red colour D.       Rhodophyceae                         d.    Brown colour

    A)            Aa, Bb, Cc, Dd                        

    B)            Ab, Bc, Cd, Da

    C)            Ab, Ba, Cd, Bc                         

    D)            Ad, Bd, Ca, Db

    Correct Answer: C

    Solution :

                       Cyanophyceae - The blue-green colour is due to presence of a phycobilin pigment c-phycocyanin (also c-phycoerythrin).                    Chlorophyceae - The green colour is due to presence of a chl. - a, chl. - b, xanthophylls and carotens.                    Phaeophyceae - Brown colour is due to presence of pigment 'fucoxanthin'.                    Rhodophyceae - Colour is red due to presence of a red pigment (r-phycocyanin) in the chromatophores.


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