1
Question
C4 plants are adapted to grow in
Open in App
Solution
The correct option is A Hot and dry climate
The same active site of RUBISCO catalyze carboxylation and oxidation of ribulose 1,5-bisphosphate thereby competing with each other. Rate of oxidation reaction increases with increasing temperature much faster than the carboxylation reaction rate causing increased rate of photorespiration at higher temperatures. Spatial separation of carbon dioxide fixation and RUBISCO activity in mesophyll and bundle sheath cells of C4 plants respectively avoids photorespiration by concentrating CO2 in bundle sheath cells to scale down the oxygenase activity of RUBISCO and increase the RUBISCO efficiency even when stomata are close for long time to avoid trasnpiration loss and making the plants adapted to hot and dry conditions.
The same active site of RUBISCO catalyze carboxylation and oxidation of ribulose 1,5-bisphosphate thereby competing with each other. Rate of oxidation reaction increases with increasing temperature much faster than the carboxylation reaction rate causing increased rate of photorespiration at higher temperatures. Spatial separation of carbon dioxide fixation and RUBISCO activity in mesophyll and bundle sheath cells of C4 plants respectively avoids photorespiration by concentrating CO2 in bundle sheath cells to scale down the oxygenase activity of RUBISCO and increase the RUBISCO efficiency even when stomata are close for long time to avoid trasnpiration loss and making the plants adapted to hot and dry conditions.
Suggest Corrections
0
Similar questions
View More
Join BYJU'S Learning Program
Explore more
Join BYJU'S Learning Program
