Diagram Of Stomata

All green plants have certain primary parts, which are essential and play a critical role in different life processes. Stomata is one of the essential attributes that is used for gaseous exchange. It functions as the mouth of a plant and is also called a stoma, or stomas.

Stomata are the minute openings, generally found in the epidermis of leaves. They are typically found in the leaves and can also be found in stems and other plant organs. It plays an important role by permitting the movement of gases such as oxygen, carbon dioxide, and water vapour to diffuse between the interior and outer surfaces of the plant tissues.

There are different types of stomata and are mainly classified based on their number and characteristics of the surrounding subsidiary cells. Listed below are the different types of stomata.

The diagram of the Stomata is useful for both classes 10 and 12. It is one of the few important topics and is majorly asked in the board examinations.

A brief description of the Stomata along with a well-labelled diagram is given below for reference.

Diagram Of Stomata

Diagram Of Stomata

  1. Epidermal Cell: It is the outermost layer of plants. These specialized cells originate from the dermal tissues of the plant. Epidermal cells are irregularly shaped cells, which help by providing mechanical support to the plant.
  2. Subsidiary Cell: These cells are located adjacent to the guard cell in the stoma of a leaf. It functions by providing support in the movement of guard cells. These cells are formed from the nearby mother cells and in some rare cases, they are developed independently.
  3. Stomatal Pore: They are minute pores or openings found on the under-surface of plant leaves. These stomatal pores play a significant role in gaseous exchange.
  4. Guard cells: They are kidney-shaped or dumbbell-shaped cells, which help in controlling the mechanism (opening and closing) of stomata.

This was a brief introduction to the Diagram of Stomata. For more information about Stomata, their structure, functions and other related topics, visit us at BYJU’S Biology.

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  1. Which position of stomata open or closed shown in the figure?