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Read the statements and choose the correct option.
Statement I: The Calvin cycle takes place only in C3 plants.
Statement II: In C4 plants, the Calvin cycle occurs in mesophyll cells.

  • (a) Both Statement I and Statement II are true. Your answer
  • (b) Both Statement I and Statement II are false. Correct
  • (c) Statement I is true but Statement II is false. Your answer
  • (d) Statement I is false but Statement II is true. Your answer
Your answer: Correct answer: (b)
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Explanation

Why (b) is correct

Both statements are false. The Calvin cycle occurs in all photosynthetic plants, not only C3 plants, and in C4 plants it occurs in the bundle sheath, not the mesophyll.

Why the other options are wrong

  • (a) · your answer Both are false.
  • (c) · your answer Statement I is false.
  • (d) · your answer Statement II is false.
NCERT point: C4 mesophyll cells lack RuBisCO.
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