<P> During carbon fixation , the substrate molecules for RuBisCO are ribulose - 1 , 5 - bisphosphate and carbon dioxide ( distinct from the `` activating '' carbon dioxide ) . RuBisCO also catalyses a reaction between ribulose - 1 , 5 - bisphosphate and molecular oxygen ( O 2 ) instead of carbon dioxide ( CO ) . </P>
<P> During carbon fixation , the substrate molecules for RuBisCO are ribulose - 1 , 5 - bisphosphate and carbon dioxide ( distinct from the `` activating '' carbon dioxide ) . RuBisCO also catalyses a reaction between ribulose - 1 , 5 - bisphosphate and molecular oxygen ( O 2 ) instead of carbon dioxide ( CO ) . </P>
rubisco can use -- -- -- -- or co2 as a substrate
rubisco can use -- -- -- -- or co2 as a substrate
ribulose - 1 , 5 - bisphosphate
ribulose - 1 , 5 - bisphosphate