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  2. To explain the role that stomata play in leaves, start with understanding the process of photosynthesis. The sun's energy causes carbon dioxide and water to react, forming glucose (sugar) and releasing oxygen. Stomata control the entrance and exit of the gases necessary for photosynthesis.

  3. Plant leaves are adapted for photosynthesis and gas exchange. Roots absorb water and mineral ions through root hair cells and are transported up the plant by the xylem.

  4. Carbon dioxide enters the leaf and oxygen and water vapour leave the plant through the stomata. Leaves are adapted in several ways to help them perform their functions.

  5. 1 day ago · Definition of Stomata. Stomata are tiny pores located on the epidermis of plant leaves and stems that regulate gas exchange, allowing carbon dioxide, oxygen, and water vapor to enter and exit the plant. Each stoma is flanked by guard cells that control its opening and closing, facilitating processes such as photosynthesis and transpiration.

  6. Explain the mechanism by which water stress, signaled by abscisic acid, triggers stomatal closure. Regulation of transpiration is achieved primarily through the opening and closing of stomata on the leaf surface. Stomata are surrounded by two specialized cells called guard cells (Figure 4.5.1.2.2.1 4.5.1.2.2. 1).

  7. Sep 15, 2024 · Stomate, any of the microscopic openings or pores in the epidermis of leaves and young stems. They provide for the exchange of gases between the outside air and the air canals within the leaf. Learn more about stomata and the guard cells that regulate their opening and closing.

  8. Feb 3, 2023 · Stomata are tiny pores mainly found on the lower epidermis of the leaf, which allow gas exchange in plants. In contrast, guard cells are pairs of bean-shaped cells surrounding each stoma, which controls pores’ opening and closing.