MCQ
In $C_{3}$ plant, when $O_{2}$ concentration is more, the $O_{2}$ binds to Rubisco and $RuBP$ gets changed to
  • A
    $2$ molecules of $PGA$
  • B
    $2$ molecules of phosphoglycerate
  • C
    $2$ molecules of phosphoglycolate
  • One molecule each of phosphoglycerate and phosphoglycolate

Answer

Correct option: D.
One molecule each of phosphoglycerate and phosphoglycolate
d
The site for photorespiration is chloroplast. RuBP carboxylase function as oxygenase and instead of fixing carbon dioxide, it convert oxidase ribulose $1-5$ biphosphate (RuBP) to produce phosphoglycerate and phosphoglycolate

$R u B P+O_{2} R u B P P G A+i$ Phosphoglycolate

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