If the Calvin Cycle Uses Three Molecules of CO₂ to Produce

question 53

Multiple Choice

If the Calvin cycle uses three molecules of CO₂ to produce six molecules of G3P (glyceraldehydes-3-phosphate) , but only one G3P molecule is used to form a carbohydrate molecule, what happens to the other carbons that were taken in?

• A) Any unused CO₂ is released into the environment.
• B) The other five G3P molecules are used to regenerate more RuBP.
• C) Any unused G3P molecule is converted and stored as starch.
• D) The remaining five G3P molecules are used to reduce CO₂.

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