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Why generally plants give out oxygen during the day and carbon dioxide at night?

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Why generally plants give out oxygen during the day and carbon dioxide at night?

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  1. aloe vera can photosynth in the dark


  2. Plants give out oxygen only during the day because of photosynthesis, a process which they use to make food. It is a reaction using water, carbon dioxide and solar energy to produce sugar and oxygen, which is released into the atmosphere. Carbon dioxide is a by-product of repiration, where glucose is reacted with oxygen to form energy, carbon dioxide and water. Respiration occurs 24/7, and so carbon dioxide is also released day and night, and not only night.

  3. Plants 'breathe' in carbon di-oxide and produce oxygen all the time. People sometimes suggest that you shouldnt have too many plants in your bedroom but a cleaner atmosphere when you sleep can only be healthy.....

  4. No,they always give out oxygen.

  5. Question 1 ) Why generally plants give out oxygen during the day ?

    Answer 1 ) All green plants that do photosynthesis in Sunlight give out Oxygen during the day time .

    Plants that do not do photosynthesis never give out Oxygen .

    There is an intimate connection between the evolution of Oxygen through plants and photosynthesis .

      At the same time there is an intimate relation between Sun light and Photosynthesis .

    It is the sun light that is used to split water molecule to get energy . Splitting of water causes evolution of Oxygen.

    click the link for relevant information ==

    http://en.wikipedia.org/wiki/Oxygen_evol...

    http://en.wikipedia.org/wiki/Photodissoc...

    Question 2 ) Why generally plants give out carbon dioxide at night?

    Answer 2 ) All living organisms including plants do respiration all the time . Respiration stops only when life is extinguished .

    So it is a wrong notion that Plants give out CO2 only at night .

    They do it all the time .

    They take in Oxygen like all of us and give out Carbon dioxide all the time like us .

    Treat both the parts of your question independently to avoid confusion.

    From= A Botanist

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