NEET Biology NEET PYQ-Photosynthesis and Translocation of Organic Solute

  • question_answer
    The first (initiating) step in photosynthesis is: [AIPMT 2000]

    A) ionisation of water

    B) attachment of CO2 to 5-carbon sugar

    C) excitation of chlorophyll by a photon of light

    D) formation of ATP

    Correct Answer: A

    Solution :

    [A] The entire process of photosynthesis is driven by light energy comes from the Sun. This energy is first captured by chlorophyll molecules and later on utilized for the synthesis of ATP (chemical energy) molecules, which are later utilized in the dark reaction i.e., Calvin cycle.


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