Select the correct labelling for the following diagram.

(1) epidermal cells (2) guard cells (3) stoma

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(1) epidermal cells (2) stoma (3) guard cells

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(1) guard cells (2) stoma (3) epidermal cells

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(1) stoma (2) epidermal cells (3) guard cells

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Solution

The correct option is D (1) guard cells (2) stoma (3) epidermal cells
The above figure shows the complex structure of the stomatal apparatus which consists of a stoma, two bean-shaped guard cells and surrounding 4-5 subsidiary (epidermal) cells.
From the question figure, it is clear that label 1,2,3 represents guard cells, stoma and epidermal cells respectively
So, the correct answer is option C.

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Similar questions

Q. A well stained leaf peel mount when observed under the high power of a microscope shows nuclei in :
(1) only epidermal cells
(2) only guard cells
(3) guard cells and epidermal cells
(4) guard cells, epidermal cells and stoma

Q. 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

Q. Given below is the diagram of a stomatal apparatus. In which of the following, all the four parts labelled as A, B, C and D are correctly identified?

	A	B	C	D
1.	Epidermal cell	Subsidiary cell	Stomatal aperture	Guard cell
2.	Subsidiary cell	Epidermal cell	Guard cell	Stomatal aperture
3.	Guard cell	Stomatal aperture	Subsidiary cell	Epidermal cell
4.	Epidermal cell	Guard cell	Stomatal aperture	Subsidiary cell

Q. A student had drawn the diagram of stomata in a hurry, as shown alongside. He could not be given full marks as he :

(1) forgot to draw nuclei in guard cells and also to label the diagram.
(2) did not draw nuclei in guard cells and other cells.
(3) should have drawn nuclei and chloroplasts in guard cells and nuclei in all epidermal cells.
(4) did not label the stoma in the correct position.

Draw a neat diagram of the stomatal apparatus found in the epidermis of leaves and label the Stoma, Guard cells, Chloroplast, Epidermal cells, Cell wall and the Nucleus.

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