Isobilateral leaf is found in

Bulliform cells are found in:

During water stress,the bulliform cells:
$(a)$ Become turgid
$(b)$ Become flaccid
$(c)$ Make the leaves curl inwards
$(d)$ Make the leaf surface exposed
The correct options are:

Describe the internal structure of a dorsiventral (dicotyledonous) leaf.

In a monocot leaf:

Assertion :- Vascular bundles of dorsiventral leaves are dissimilar in size.
Reason :- The thickness of veins vary in dorsiventral leaves.