BHU PMT BHU PMT Solved Paper-2002

  • question_answer
    Photorespiration is the characteristic of:

    A)                  \[{{C}_{3}}\]plants                         

    B)  \[{{C}_{4}}\]plants

    C)                  \[{{C}_{2}}\]plants                         

    D)  \[{{C}_{6}}\]plants

    Correct Answer: A

    Solution :

                     Photorespiration is light induced cyclic oxidation of photosynthetic intermediates with help of oxygen. Photorespiration and is characteristic feature of \[{{C}_{3}}\] plants Photorespiration is stimulated by : (i)High light intensity (ii)           High temperature (iii)          High oxygen concentration. \[{{C}_{4}}\]plants are plants in which first product of photosynthesis is \[{{C}_{4}}\]compound Le., oxaloacetic acid like maize, sugarcane etc. Photorespiration is little in them.


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