Katharyn C. answered 06/16/19
I don't want to directly answer this question, since it appears to be part of an assignment. Generally, RUBISCO is an enzyme. The naming of enzymes follows the convention "substrate-reaction-ase". This particular reaction is part of the Calvin cycle. You can google an image of the Calvin cycle and find the reaction RUBISCO catalyses. If you still have questions, come back here with what you have learned and I will help further!