What happens during the reduction stage of the calvin cycle


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In one to three sentences, describe what happens during the reduction stage of the Calvin cycle

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Answer:

  1. ATP and NADPH facilitate the reduction of 6 molecules of 3-PGA  (formed in carbon fixation)to six molecules of the simple sugar glyceraldehyde 3-phosphate (G3P).
  2. In the reduction process ADP and NADPH+ are made, when ATP releases energy and loses its terminal phosphate,  and NADPH loses energy and a hydrogen atom.
  3. ADP and NADPH+ return to the light-dependent reactions for re-use.

Explanation:

Sugar biosynthesis in plants, called photosynthesis produces glucose from the reactants;  it uses energy from sunlight, along with carbon dioxide and water. In chloroplasts, this occurs in the light-dependent and dark reactions. In the light- dependent reaction, solar energy stimulates photosystems, formed from pigments like chlorophylls.

In the light-independent reaction, products of the light reaction are used to make sugars. Here, in the Calvin cycle, the enzyme, RuBisCO, catalyzes the fixation of CO2 with Ribulose 1,5-bisphosphate (RuBP).  Organic molecules are reduced and RuBP is regenerated.


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