Question

During the light-independent reaction, carbon dioxide is fixed by adding it

to a
A) 2-carbon compound
B) 3-carbon compound
C) 4-carbon compound
D) 5-carbon compound

Answer 1

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) .

Step-by-step 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 .