How does increased atmospheric $text{CO}_2$ concentration generally affect the photorespiration rate in $text{C}_3$ plants?

💡 Explanation:

In $text{C}_3$ plants, the enzyme $text{RuBisCO}$ catalyzes two competing reactions: carboxylation (photosynthesis) and oxygenation (photorespiration). An increased concentration of $text{CO}_2$ relative to $text{O}_2$ kinetically favors the carboxylation reaction over the oxygenation reaction, leading to a reduced rate of photorespiration.