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Q: The NADPH required for the calvin cycle comes from

  • 1
    Reactions initiated in photosystem 1
  • 2
    Citric acid cycle
  • 3
    Reactions initiated in photosystem 2
  • 4
    Glycolysis
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Answer : 3. "Reactions initiated in photosystem 2"
Explanation :

Answer: C) Reactions initiated in photosystem 2 Explanation: ATP and NADPH produced by the light reactions are used in the Calvin cycle to reduce carbon dioxide to sugar. The Calvin cycle is similar to the Krebs cycle in that the starting material is regenerated by the end of the cycle.

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