Question

Four students, A, B, C and D, make the records given below, for the parts marked X and Y in this diagram.

Student	X	Y
A B C D	Stoma Guard cell Epidermal cell Stoma	Guard cell Stoma Stoma Epidermal cell

The correct record, out of these, is that of student:

(1) A
(2) B
(3) C
(4) D

Answer 1

The correct record is made by student A as X represents stoma whereas Y represents guard cells.
Stoma also known as the stomatal pore is an opening which is surrounded by a pair of guard cells.
Guard cells are bean shaped cells which regulate the opening and closing of the stomatal pore.

Hence, the correct answer is option 1.