What are bulliform cells? What is their function? - Vidyadip

Question

What are bulliform cells? What is their function?

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Answer

Bulliform Cells are certain adaxial epidermal cells along the veins, which have become large, empty and colourless.
When bulliform cells are turgid, the leaf surface is exposed; when they are flaccid, the leaves curl inwards and the surface is not exposed.

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