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NEET2002BotanyPhotosynthesis in Higher PlantsActual

Assertion : When six molecules of carbon dioxide participate in photosynthesis, 12 molecules of NADP ⁺ and 18 ATP are used up, forming one hexose molecule. Reason : The photosynthetic light reaction results in the formation of ATP and NADPH.

Options

  1. AIf both the assertion and reason are true and reason is a correct explanation of the assertion.
  2. BIf both assertion and reason are true but assertion is not a correct explanation of the assertion.
  3. CIf the assertion is true but the reason is false.
  4. DIf both assertion and reason are false.

Correct answer

B. If both assertion and reason are true but assertion is not a correct explanation of the assertion.

Step-by-step solution

When six molecules of carbon dioxide enter Calvin cycle, one hexose molecule is formed, whereas 18 ATP and 12 NADP ⁺ molecules are used up. The light reaction of photosynthesis results in the formation of ATP and NADPH.

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