CO2 diffuses into the chloroplast and combines with RuBP to form a 6-Carbon sugar. The 6-carbon sugar immediately splits into 2 molecules of PGA. The PGA then takes an H from NADPH and a P from ATP and becomes PGAL. Some PGAL is then converted into glucose, most is used to build more RuBP. 6 turns are necessary for a molecule of glucose.
The light independent reaction takes place in the stroma.
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