NEET Biology
NEETBiologyPhotosynthesis in Higher PlantsClass 11

What is the difference between light reaction and dark reaction?

The light reaction (thylakoid) needs light and makes ATP/NADPH + O₂; the dark reaction (stroma) fixes CO₂ into sugar using those products.

The light reaction (thylakoid) needs light and makes ATP/NADPH + O₂; the dark reaction (stroma) fixes CO₂ into sugar using those products. A reliable way to keep them apart is to focus on what each one is defined by, not just the similar-sounding words.

Key point

light reaction vs dark reaction

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