Question

Which of the following is produced during photorespiration in $C_3$ plants?

• A. 2 molecules of 3-phosphoglycerate
• B. 2 molecules of phosphoglycolate
• C. 1 molecule of phosphoglycerate and 1 molecule of phosphoglycolate
• D. 1 molecule of phosphoglycerate and 2 molecules of phosphoglycolate

Answer 1

The correct option is C 1 molecule of phosphoglycerate and 1 molecule of phosphoglycolate

In $C_3$ plants, some molecules of RuBisCO bind with $O_2$. Instead of forming two molecules of 3-PGA, RuBP forms one molecule each of 3-PGA and phosphoglycolate in a pathway called photorespiration.