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NEET2026BiologyChapterActual

During photosynthesis, the light reaction produces several key molecules. Which of these products are directly consumed in the stroma to drive the biosynthetic phase?

Options

  1. AATP and O ₂
  2. BATP and NADPH
  3. CADP and NADP ^+
  4. DNADPH and H ₂ O

Correct answer

B. ATP and NADPH

Step-by-step solution

During the light reaction of photosynthesis, light energy is captured to produce ATP and NADPH, with O ₂ being released as a byproduct. The O ₂ diffuses out of the chloroplast, while ATP and NADPH are released into the stroma. In the stroma, ATP and NADPH are directly consumed in the biosynthetic phase (Calvin cycle) to drive the reduction of CO ₂ into carbohydrates. Answer: ATP and NADPH

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