Photosynthesis

AP Biology· difficulty 2/5

For each glucose molecule made via photosynthesis, how many CO₂ molecules are fixed?

  • A

    1

  • B

    3

  • C

    6

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  • D

    12

Explanation

The overall equation 6 CO₂ + 6 H₂O → C₆H₁₂O₆ + 6 O₂ shows 6 CO₂ fixed per glucose.

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