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The mass percent of carbon in pure glucose (C₆H₁₂O₆) is 40 percent. A chemist analyzes a sample and determines the mass percent of carbon to be 38.2 percent.

a) True
b) False

Answer :

Final answer:

In one turn of the Calvin cycle, six molecules of carbon dioxide are fixed and two molecules of G3P are produced. Most of the G3P molecules are used to regenerate RuBP, but some can be used to synthesize glucose and other organic molecules.

Explanation:

In one turn of the Calvin cycle, six molecules of carbon dioxide (CO2) are fixed. The three-carbon compound phosphoglycerate (PGA) is produced, and for every six molecules of CO2, two molecules of glyceraldehyde-3-phosphate (G3P) are produced. Most of the G3P molecules are used to regenerate the molecule that starts the cycle, called ribulose bisphosphate (RuBP), but some G3P molecules can be used to synthesize glucose and other organic molecules.

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