Plants exchange gases through stomata, and diffusion occurs in the large inter-cellular spaces. Carbon dioxide and oxygen are exchanged based on environmental conditions and the needs of the plant.
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Plants exchange gases, such as carbon dioxide (CO₂) and oxygen (O₂), through tiny pores called stomata. Stomata are primarily located on the surfaces of leaves, stems, and other plant organs. During photosynthesis, CO₂ is taken in through stomatal openings in the leaves. Simultaneously, oxygen produced in the process is released. This gas exchange is regulated by guard cells surrounding each stoma. In the presence of light, guard cells take up water, causing the stomata to open. Conversely, in darkness or water scarcity, the stomata close to prevent excessive water loss, regulating the balance between gas exchange and water conservation in plants.