BIOCHEMISTRY
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    photosynthesis

    The process by which carbon dioxide and water are converted into carbohydrates by green plants, algae, and some bacteria, with the aid of sunlight. Overall, photosynthesis involves the reduction of hydrogen by a coenzyme. This is in contrast to respiration in which glucose is oxidized.

    As shown in the diagram below, photosynthesis occurs in two distinct stages: photolysis (the photochemical stage or light reaction) and the Calvin cycle (the thermochemical stage or dark reaction).


    photosynthesis schematic



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