Question

Specialised epidermal cells surrounding the guard cells are called

(a) bulliform cells

(b) lenticels

(c) complementary cells

(d) subsidiary cells.

Answer 1

Ans: (d) subsidiary cells.

Explanation: In epidermis of leaves and stems, around the stomata some guard cells are present and around guard cells some less modified cells also present known as subsidiary cells and subsidiary cells provides support to the guard cells.

Answer 2

Ans: (d) subsidiary cells.

Sol: The leaf and stem epidermis of plant is covered with pores called stomata. Each stomata is surrounded by a pair of specialised epidermal cells known as guard cells which are in some cases further surrounded by another category of less modified epidermal cells known as subsidiary cells which provide support to the guard cells.