MGIMS WARDHA MGIMS WARDHA Solved Paper-2014

  • question_answer
    Glycolate accumulates in chloroplast when there is

    A)  low\[C{{O}_{2}}\]          

    B)  high\[C{{O}_{2}}\]

    C)  bright light       

    D)  low temperature

    Correct Answer: A

    Solution :

                    Glycolate is a respiratory substrate in photo respiration, which is formed in high concent ration of\[{{O}_{2}}\]but low concentration of\[C{{O}_{2}}\] under the influence of RuBP oxygenase in chloroplast. When temperature and\[C{{O}_{2}}\] content are high the affinity of RuBP carboxylase increases for\[{{O}_{2}}\]but decreases for carbondioxids. Glycolate is produced as intermediate in\[{{C}_{3}}\]cycle.


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