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Which of the following is NOT a difference between C3 and C4 plants?

  • (a) pathway that makes sugar Correct
  • (b) primary CO2 acceptor Your answer
  • (c) presence of Kranz anatomy Your answer
  • (d) first stable product Your answer
Your answer: Correct answer: (a)
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Explanation

Why (a) is correct

Both C3 and C4 plants make sugar by the same pathway, the Calvin cycle. So this is not a difference.

Why the other options are wrong

  • (b) · your answer This differs: RuBP in C3, PEP in C4.
  • (c) · your answer This differs: only C4 plants have Kranz anatomy.
  • (d) · your answer This differs: PGA in C3, OAA in C4.
NCERT point: The Calvin cycle is common to all photosynthetic plants.
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