Question : Assertion : Under conditions of high light intensity and limited CO_(2) supply, photorespiration has a useful role in protecting the plants from photo oxidative damage. Reason If enough CO_(2) is not avilable to utilize light enregy for carboxylation to proceed, the excess energy may not cause damage to plants.

Question : Assertion : Under conditions of high light intensity and li

1.	Question : Assertion : Under conditions of high light intensity and limited CO_(2) supply, photorespiration has a useful role in protecting the plants from photo oxidative damage. Reason If enough CO_(2) is not avilable to utilize light enregy for carboxylation to proceed, the excess energy may not cause damage to plants.
Answer» If both ASSERTION & Reason are true and the reason is the correct explanation of the assertion. It both Assertion & Reason are true but the reason is not the correct explanation of the assertion. If Assertion is true statement but Reason is false. It both Assertion and Reason are false statements. Solution :Photorespiration protects the plants from photoxidative DAMGAE by dissipating excessof excitation ENERGY. When the `CO_(2)` supply is limited and under high light intensity photorespiration takes place thus protecting the plants. If enough `CO_(2)` is not available to utilize light energy for carboxylation to PROCEED, the excess energy will cause phtoxidative damage to the plants. the energy = liberated should be used in photophosphorylation in presence of `CO_(2)`. if `CO_(2)` is less then in `C_(3)` plants `O_(2)` combines with RuBP to from phosphoglycollate thus utilizing the excess energy.