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NEET Biology NEET PYQ-Photosynthesis and Translocation of Organic Solute

  • question_answer
    Photochemical reactions in the chloroplast are directly involved in: [AIPMT 2000]

    A) photolysis of water and phosphorylation of ADP to ATP

    B) formation of phosphoglyceric acid

    C) synthesis of glucose and starch     

    D) fixation of carbon dioxide

    Correct Answer: A

    Solution :

    [A] CO2 is fixed in the stroma of the chloroplast leading to the synthesis of PGA from which glyceraldehyde phosphate is formed. From glyceraldehyde phosphate, sugar and starch are formed. All these do not require light. However, photolysis of water and phosphorylation of ADP to ATP requires light energy.


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