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NCERT says that the "dark reactions" should not be thought of as reactions occurring in the dark. They are better called

  • (a) oxygen reactions Your answer
  • (b) carbon reactions Correct
  • (c) photochemical reactions Your answer
  • (d) light-independent respiration Your answer
Your answer: Correct answer: (b)
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Explanation

Why (b) is correct

NCERT says the dark reactions do not need darkness; they are better called carbon reactions, since they reduce CO2 to sugar.

Why the other options are wrong

  • (a) · your answer They do not produce oxygen.
  • (c) · your answer Photochemical reactions are the light reactions.
  • (d) · your answer They are part of photosynthesis, not respiration.
NCERT point: The carbon reactions depend on ATP and NADPH from the light reactions.
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