Plants that exhibit photorespiration are .......

What is the 'Warburg effect' on photosynthesis?

In $C_3$ plants,photorespiration is initiated by the reaction of $RuBP$ with:

The phenomenon that distinguishes $C_3$ and $C_4$ plants is .......

Given below are two statements:
Statement $I$: In $C_3$ plants,some $O_2$ binds to $RuBisCO$,hence $CO_2$ fixation is decreased.
Statement $II$: In $C_4$ plants,mesophyll cells show very little photorespiration while bundle sheath cells do not show photorespiration.
In the light of the above statements,choose the correct answer from the options given below:

The glycolate metabolism occurs in