What are bulliform cell

1.	What are bulliform cell
Answer» Bulliform cells are large , bubble shaped epidermal cells that occur in groups on the upper surface of the leaves of many monocots \tCertain adaxial epidermal cells along the veins modify themselves into large, empty, colourless cells, which are called bulliform cells. Example- grass.\tWhen the bulliform cells in the leaves have absorbed water and are turgid, the leaf surface is exposed and when they are flaccid due to water stress, they make the leaves curl inwards to minimise water loss.

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