Answer :
Answer:
In the light independent reaction or dark reaction the first step deals with the fixation of Carbon dioxide with Ribulose bisphosphate a 5 carbon compound by the help of an enzyme known as Ribulose bisphosphste carboxylase(RUBISCO) .
Explanation
The light independent reaction or dark reaction of photosynthesis occur in the Stroma of chloroplast.
RUBISCO catalyzes the carbon dioxide fixation reaction in which the carbon dioxide reacts with a 5 carbon compound to generate 2 molecules of Phosphoglyceric acid(PGA) a 3 carbon compound the first stable product of C3 cycle .