In leaves, the ground tissues consists of

Grass leaves curl Inwards during very dry weather. Select the most appropriate reason from the following

Bulliform cells are responsible for

Describe internal structure of sunflower leaf.

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

$T.S.$ of dicot leaf passing through the midrib is given below, certain parts have been indicated by alphabets. Choose the correct option