BVP Medical BVP Medical Solved Paper-2007

  • question_answer
    Which of the following is the first compound that accepts carbon dioxide during dark phase of photosynthesis?

    A)                  NADP     

    B)                  RuBP

    C)                  Ferredox in       

    D)  Cytochrome

    Correct Answer: B

    Solution :

                    Dark phase of photosynthesis or Calvin cycle takes place in stroma of chloroplast. First step of dark phase is carboxylation. In carboxylation \[C{{O}_{2}}\] is combined with RuBP to form first stable compound. \[6RuBP+6C{{O}_{2}}\xrightarrow{RUBPcarboxylase}\]12 phosphoglyceric acid NADP acts as hydrogen acceptor. Cytochrome or iron porphyrin protein involves in electron transport chain. Ferredoxin is a pigment. It is a component of photosystem-I and involves in light reaction of photosynthesis.


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