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Question
In the following sketch of the stomatal apparatus the parts I, II, III and IV were labelled, differently by four students. The correct labelling out of the following is :
In the following sketch of the stomatal apparatus the parts I, II, III and IV were labelled, differently by four students. The correct labelling out of the following is :
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Solution
The correct option is B (I) Cytoplasm (II) Nucleus (III) Stoma (IV) Chloroplast
Stomata are small pores
present in the epidermis of leaves. It is a complex structure required to perform
the particular function of the stomata. Stomata or pores allows the exchange of
the gases in the plants which is controlled by the specialized epidermis cells.
The stomatal pore is enclosed between two bean-shaped guard cells. The inner
walls of guard cells are thick, while the outer walls are thin. The guard cells
are surrounded by subsidiary cells. These are the specialized epidermal cells
present around the guard cells. The pores, the guard cells and the subsidiary
cells together constitute the stomatal apparatus.
The above figure shows its various parts. So, the correct answer is option B.
Stomata are small pores present in the epidermis of leaves. It is a complex structure required to perform the particular function of the stomata. Stomata or pores allows the exchange of the gases in the plants which is controlled by the specialized epidermis cells. The stomatal pore is enclosed between two bean-shaped guard cells. The inner walls of guard cells are thick, while the outer walls are thin. The guard cells are surrounded by subsidiary cells. These are the specialized epidermal cells present around the guard cells. The pores, the guard cells and the subsidiary cells together constitute the stomatal apparatus.
The above figure shows its various parts. So, the correct answer is option B.
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