What is Stomata?
Stomata are small, doughnut-shaped pores on the surface of leaves, stems, and other plant organs. They facilitate gas exchange, allowing plants to absorb carbon dioxide for photosynthesis and release oxygen. Each stoma is surrounded by two guard cells that control its opening and closing. This mechanism helps regulate water loss through transpiration, opening during the day and closing at night or under drought stress. Stomata are vital for plant homeostasis, balancing gas exchange and water retention. They are found in most terrestrial plants, with their density and distribution varying according to environmental conditions. These structures are important for plant survival and adaptation.
Types of Stomata
Stomata are small pores on leaf and stem surfaces essential for gas exchange and transpiration in plants. Each stoma is controlled by two guard cells that regulate its opening and closing. The distribution and structure of stomata vary, with dicots having more on the lower leaf surface and monocots having them evenly distributed.
Stomata can be classified based on the number and arrangement of surrounding cells, evolutionary development, and developmental origin. In this article, we will study the stomata and its types and functions in detail.
Table of Content
- What is Stomata?
- Types of Stomata
- Based on the Number and Arrangement of Surrounding Cells
- Based on the Evolutionary Development
- Functions of Stomata
- Conclusion: Types of Stomata
- FAQs on Types of Stomata