MGIMS WARDHA MGIMS WARDHA Solved Paper-2003

  • question_answer
    The substrate for photorespiration is :

    A)  glycolate                            

    B)  acetyl Co-A

    C)  pyruvic acid                      

    D)  glucose

    Correct Answer: A

    Solution :

                     Photorespiration is a kind of respiration that occurs in photosynthetic cells only. It   was  discovered  by  Decker in tobacco and Mimulus. In this process chloroplast,      mitochondria     and peroxisomes are involved. The substrate for   photorespiration   is   glycolate formed in the chloroplast. It converted enzymatically   into   glyoxalate   in peroxisome   which  further changes into    glycine.    In    mitochondria glycine     changes     into     serine, Photorespiration is the characteristic feature of \[{{C}_{3}}\]plants.


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