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The products of the light reaction of photosynthesis are

  • (a) ATP only Your answer
  • (b) carbohydrates Your answer
  • (c) NADPH, ATP and O2 Correct
  • (d) NADP+ and O2 Your answer
Your answer: Correct answer: (c)
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Explanation

Why (c) is correct

The light reaction produces ATP, NADPH and O2.

Why the other options are wrong

  • (a) · your answer NADPH and O2 are also produced.
  • (b) · your answer Carbohydrates are made in the Calvin cycle (dark reaction).
  • (d) · your answer NADP+ is used up, not produced.
NCERT point: O2 diffuses out; ATP and NADPH are used in the Calvin cycle.
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