Question

In a monocot leaf

• A. bulliform cells are absent from the epidermis
• B. veins form a network
• C. mesophyll is well differentiated into palisade
• D. mesophyll is not differentiated into palisade and spongy parenchyma

Answer 1

The correct option is D mesophyll is not differentiated into palisade and spongy parenchyma

The anatomy of a leaf shows the presence of mesophyll cells between the upper and lower epidermis. An isobilateral leaf as seen in the monocots, shows the mesophyll tissue to be made up of only spongy parenchyma.
In a dicot leaf, the mesophyll cells are differentiated into palisade parenchyma (on the adaxial or upper side) and spongy parenchyma (on the abaxial or lower side).

Bulliform cells are specialized large parenchymatous cells found on the upper epidermis of monocot plants which help in the rolling in of the leaves to prevent the water loss under stress. They are also called motor cells.

T.S. of monocot leaf