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light reaction

   Also found in: Wikipedia 0.04 sec.
light reaction
n.
The first stage of photosynthesis, occurring only in the presence of light, during which energy captured from light drives the production of ATP.
light reaction
Any of the chemical reactions that take place during the first stage of photosynthesis and require the presence of light. During the light reactions, energy captured from light by chlorophyll and its accessory pigments drives the production of ATP, the source of energy that is later used to drive the production of carbohydrates. Compare dark reaction. See more at photosynthesis.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.light reaction - the first stage of photosynthesis during which energy from light is used for the production of ATP
photochemical reaction - a chemical reaction produced by the action of light
photosynthesis - synthesis of compounds with the aid of radiant energy (especially in plants)
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Additionally, the nucleotide-degrading enzyme switches off the light reaction and allows the next sequencing reaction to be initiated.
Pyrosequencing Strengthens Intellectual Property for Core Technology ... by Business Wire
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