A) phosphoglycerate
B) phosphoglycolate
C) glycerate
D) glycine
Correct Answer: B
Solution :
Photorespiration is the light dependent proca in which utilization of oxygen and release a \[C{{O}_{2}}\] by the photosynthetic organs of pis takes place. Normally, photosynthetic orga are reverse in the light, i.e., uptake of \[C{{O}_{2}}\] and release of \[{{O}_{2}}\]. This process is pronounced in \[{{C}_{3}}\] plants and negligible in \[{{C}_{4}}\] plants. At high temperature RuBP carboxylase functions i oxygenate and instead of fixing \[C{{O}_{2}},\] oxidizes ribulose 1, 5 biphosphate to produce phosphoglyceric acid and phosphoglycota (starting product). On hydrolyzing, it forms glycolate and then glyoxylate, glycine u serine respectively. \[{{\text{O}}_{\text{2}}}+\text{RUBP }\xrightarrow{Rubisco}\text{ 3 phosphoglycerate}+\text{2 }\] \[\text{phosphoglycerc}\] Glycolate enter in peroxisome for furtbs reactions.
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