Question

and
observe the diagram
lable label the formation
term :stomatal
opening
and guard cell

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Answer 1

Diagram is not given by you !!!

Stomata are pores on the leaf surface, which are formed by a pair of curved, tubular guard cells; an increase in turgor pressure deforms the guard cells, resulting in the opening of the stomata.

Guard cells are specialized plant cells in the epidermis of leaves, stems and other organs that are used to control gas exchange.