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Where is the Calvin Benson Cycle, what is put in, what comes out?

User Blossom
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Final answer:

The Calvin-Benson cycle occurs in the stroma of chloroplasts or cytoplasm of photosynthetic bacteria and uses CO2, ATP, and NADPH to produce glucose. The cycle includes stages of carbon fixation, reduction, and regeneration, creating G3P and glucose as the main outputs.

Step-by-step explanation:

Calvin-Benson Cycle Location and Inputs/Outputs: The Calvin-Benson cycle, also known as the Calvin cycle, is a part of photosynthesis located in the stroma of chloroplasts in eukaryotic cells and in the cytoplasm of photosynthetic bacteria. This cycle can be broken down into three stages: carbon fixation, reduction, and regeneration of the starting molecule, ribulose bisphosphate (RuBP). During the cycle, carbon dioxide (CO2) is "fixed" when it reacts with RuBP, aided by the enzyme RuBisCo, to form 3-phosphoglycerate (3-PGA). The energy for the cycle is supplied by ATP and NADPH which are produced during the light-dependent reactions of photosynthesis. These energy carriers are used to convert 3-PGA into glyceraldehyde-3-phosphate (G3P), and eventually to produce glucose. For the cycle to produce one molecule of G3P, three CO2 molecules must enter the cycle. To make one glucose molecule, the cycle must run six times. In summary, the Calvin-Benson cycle uses CO2, ATP, and NADPH to produce glucose, thus storing chemical energy in a form that is usable by the plant and other organisms.

User CBBSpike
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