Carbon - Carbon-fixing reaction Glucose and other...

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Unformatted text preview: Carbon-fixing reaction Glucose and other carbohydrates are synthesized in the carbon-fixing reaction of photosynthesis, often called the Calvin cycle for Melvin Calvin, who performed much of the biochemical research In the carbon-fixing reaction, an essential material is carbon dioxide, which is obtained from the atmosphere. The carbon dioxide is attached to a five-carbon compound called ribulose diphosphate . Ribulose diphosphate carboxylase catalyzes this reaction. After carbon dioxide has been joined to ribulose diphosphate, a six-carbon product forms, which immediately breaks into two three-carbon molecules called phosphoglycerate . Each phosphoglycerate molecule converts to another organic compound, but only in the presence of ATP. The ATP used is the ATP synthesized in the energy-fixing reaction. The organic compound formed converts to still another organic compound using the energy present in NADPH. Again, the energy-converts to still another organic compound using the energy present in NADPH....
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