Large,empty,colourless cells of the adaxial epidermis along the veins of grass leaves are:

Bulliform cells are the modification of

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

Between which of the contiguous cells is the middle lamella absent?

Which of the following is absent in a monocot leaf?

Plant cells that are photosynthetically active are found in the $A$ layer of leaves and are $B$. Choose the correct combination of $A$ and $B$ from the below given options.