Dark Reactions: Calvin Cycle and C3 Pathway · NCERT Biology

Which of the following statements about the Calvin cycle is FALSE?

  1. It occurs in all photosynthetic plants
  2. It requires ATP and NADPH from light reactions
  3. It is also called the reductive pentose phosphate pathway
  4. It occurs exclusively in the dark, independent of light
Show answer and explanation

Correct answer: It occurs exclusively in the dark, independent of light

The term 'dark reaction' is a misnomer; while it does not directly use light, it is most active during the day because it relies on the immediate supply of ATP and NADPH from the light reactions.

Difficulty: Medium Question 11 of 20

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