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  • ICAR and TNAU E-Course Summarized

    Summarized Notes
  • Which among the following components is NOT a necessary component for photosynthesis?

    Question: Which among the following components is NOT a necessary component for photosynthesis?

    Options:

    Carbon dioxide
    Water
    Sunlight
    Nitrogen

    The correct answer is Nitrogen.
    -Nitrogen is not a necessary component for photosynthesis.

    🔑Key Points:
    -Photosynthesis is a process by which food is prepared by plant cells.

    ✏️The components involved in the photosynthesis process are:
    -Chlorophyll: 
    -It is the green colored pigment present in plant cells. 
    -Cells present in leaf take part in photosynthesis as they possess chlorophyll. 
    -Organelles grana and stroma in chlorophyll is where photosynthetic reaction takes place.

    ✏️Carbon dioxide:
    -During photosynthesis, the carbon dioxide is converted into glucose through various reactions.
    -Plant cells acquire the cabon dioxide from open atmosphere.

    ✏️Water:
    -Water is necessary for the photosynthetic light reaction.
    -Roots of the plants absorb water by osmotic process.
    -The absorbed water reaches the photosynthetic cells of the leaves through vascular xylem tissues.

    ✏️Sunlight:
    -Photosynthesis only complete when visible light is absorbed by chlorophyll.
    -Thus sunlight is necessary for photosynthesis.
    -Photosynthetic reaction is maximum in red colored light and minimum for violet colored light.

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