In grasses, certain adaxial epidermal cells along the veins modify themselves into large, empty, colourless cells. These are called ...A... when these cells absorb water and are turgid the leaf surface is ... 
.... Identity 
and 
from the following
(a) | bulliform cell | exposed |
(b) | mesophyll cell | curl |
(c) | spongy parenchyma | exposed |
(d) | connective tissue | curl |
Text Solution
Verified by ExpertsA
Bulliform cells-also known as motor cells, are huge bubble-shaped epidermal cells found on the top surface of leaves in groups of multiple monocots. When bulliform cells in the leaves have absorbed water and are turgid, the leaf surface is exposed 
. When they are flaccid due to water stress, they make the leaves curve inwards to minimise water loss.
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