Refer to the given cross section of a `C_(4)` leaf and select the incorrect option.

Options

A. P are the chloroplasts in which thyiakoids are stacked together to form grans.
B. P are the chloroplasts which can perform light reaction, evolve molecular `O_(2)` and produce assimilatory power.
C. Q are the chloroplasts in which thylakoids occur as stroma lamellae.
D. Q are the chloroplasts in which `CO_(2)` is fixed by phosphoenol pyruvic acid to form oxaloacetic acid.

Answer

D

Explanation

The given croos ection of the leaf represents Kranz anatomy in a `C_(4)` plant. P are the chloroplasts of mesophyll cells, which are granal (i.e., thylakoids are stacked to from grana) and are specilasied to perform light reaction of photosynthesis, evolve `O_(2)` and produce assimilatory power (ATP+NADPH`_(2)`). Q are the chloroplasts of bundle sheath cells which are agranal, i.e., grana are absent and the thylakoids occur as stroma lamellae. In these chloroplasts. Final fixation of `CO_(2)` takes place through calvin cycle where `CO_(2)` is fixed by RuBP in the presence of enzyme RuBisCO.