What is dark reaction ?

Asked by  | 6th Mar, 2008, 07:30: PM

Expert Answer:

  • The dark reaction is the second phase of photosynthesis which occurs in the stroma of chloroplasts.
  • The reaction is also known as the biosynthetic phase or Blackman’s reaction or carbon dioxide fixation or Calvin cycle.
  • It uses ATP and NADPH2 for the fixation and reduction of CO2 to form carbohydrates.
  • The dark reaction is independent of light and may take place in the light or dark without the use of light energy.
  • In the dark reaction, CO2 is reduced to carbohydrates in the form of sugar.

Answered by  | 6th Dec, 2017, 04:50: PM