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The Calvin cycle occurs in

  • (a) C4 plants only Your answer
  • (b) all photosynthetic plants Correct
  • (c) C3 plants only Your answer
  • (d) CAM plants only Your answer
Your answer: Correct answer: (b)
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Explanation

Why (b) is correct

The Calvin cycle occurs in all photosynthetic plants, whether C3, C4 or CAM. C4 and CAM plants only add an extra step before it.

Why the other options are wrong

  • (a) · your answer C3 and CAM plants also use the Calvin cycle.
  • (c) · your answer C4 plants also run the Calvin cycle, in the bundle sheath.
  • (d) · your answer C3 and C4 plants also use it.
NCERT point: NCERT: the Calvin pathway occurs in all photosynthetic plants.
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