Section 10: Calvin Cycle

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13 Terms

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What is the Calvin cycle?
Light-independent pathway that makes carbohydrates from CO2.
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Where does the Calvin cycle occur?
Chloroplast stroma.
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What are the 3 phases of the Calvin cycle?
Carbon fixation → reduction → regeneration.
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What happens during carbon fixation?
CO2 is attached to RuBP.
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What enzyme fixes CO2?
Rubisco.
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What does Rubisco stand for?
Ribulose bisphosphate carboxylase/oxygenase.
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What is RuBP?
A 5-carbon molecule that accepts CO2.
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What happens after CO2 is attached to RuBP?
An unstable 6-carbon compound forms and splits into 3-PGA.
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What energy carriers are used during the Calvin cycle?
ATP and NADPH.
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What sugar is produced by the Calvin cycle?
G3P, glyceraldehyde-3-phosphate.
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What happens during the reduction phase?
ATP and NADPH help convert 3-PGA into G3P.
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What happens during regeneration?
RuBP is regenerated so the cycle can continue.
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What is CO2 fixation?
Attaching inorganic CO2 carbon to an organic molecule.