What conditions enable RuBisCO to function as an oxygenase ? Explain the ensuing process.

Explanation

RuBisCo is an enzyme which has dual nature. It acts as carboxylase, when `CO_(2)` concentration is good enough in atmosphere. But if `O_(2)` concentration increases, its nature changes and it binds with `O_(2)` and acts as oxygenase enzymes, which foreces `CO_(2)` to enter `C_(2)` cycle thus leading to photorespiration and loss of `CO_(2)`.