Exchange of gases occurs through which part of the plant tissue?

Stomata

The correct answer is Option (2)- Stomata

The exchange of gases in plants primarily occurs through stomata.

Stomata: These are small pores or openings, typically found on the surfaces of leaves, stems, and other plant organs. Stomata play a crucial role in gas exchange, allowing the entry of carbon dioxide (CO₂) for photosynthesis and the exit of oxygen (O₂) produced during photosynthesis. Additionally, water vapor is released through stomata in a process called transpiration.

While other plant tissues, such as the epidermis and lenticels, may also contribute to gas exchange to some extent, stomata are the main structures dedicated to this function. The opening and closing of stomata are regulated by specialized cells, known as guard cells, to control the rate of gas exchange and prevent excessive water loss.