Question

The specialised epidermal cells present in the vicinity of guard cells are called

• A. bulliform cells
• B. subsidiary cells
• C. companion cells
• D. endodermal cells

Answer 1

The correct option is B subsidiary cells

A few epidermal cells in the vicinity of guard cells become specialised in their shape and size are known as subsidiary cells.

Bulliform cells are adaxial epidermal cells of monocot leaves.
Companion cells are parenchymatous cells of phloem.
Endodermal cells are cells of the endodermis.