The oxygenation activity of RuBisCO enzyme in photorespiration leads to the formation of
The oxygenation activity of RuBisCO enzyme in photorespiration leads to the formation of
1 molecule of 3-C compound and 1 molecule of a 2-C compound
1 molecule of 6-C compound
1 molecule of 4-C compound and 1 molecule of 2-C compound
2 molecules of 3-C compound
Solution
$C_2$ cycle or glycolate pathway operates during the daytime in $C_3$ plants and RuBisCO acts as oxygenase at higher concentration of $O_2$ and low $CO_2$ concentration in the $C_3$-green cells. The light-dependent uptake of $O_2$ and release of $CO_2$ in $C_3$ photosynthetic cells is called photorespiration.
$\begin{aligned}
RuBP + O_2 &\rightarrow Low\ CO_2\ concentration,\ High\ O_2\ concentration,\ High\ temperature\\
RuBisCO &\rightarrow 1\ PGA + 1\ Phosphoglycolate\ (5C)\\
&\rightarrow 3C\\
&\rightarrow 2C
\end{aligned}$