Question

what is dark reaction give chemical equation

Answer 1

dark reaction is the cycle reaction occurs in second phase of photosinthesis does not need light

ATP +NADPH +CO2+ H2O→C6H12O6

Answer 2

Dark reactions make use of these organic energy molecules (ATP and NADPH). This reaction cycle is also called Calvin Benison Cycle, and it occurs in the stroma. ATP provides the energy while NADPH provides the electrons required to fix the CO2 (carbon dioxide) into carbohydrates.

The equation of dark reaction may be summed up as:

6RuBP + 6CO2 + 18ATP + 12NADPH ———→ 6RuBP + C6H12O6 +18 ADP +18P +12 NADP

18ATP is required for the synthesis of one molecule of glucose, 6ATP is used for the regeneration of RuBP.

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