Question

Какой(ие) процесс(ы) жизнедеятельности растений регулируются открыванием и закрыванием устьиц? Даю 25 баллов 1) Фотосинтез2) Размножение3)Испарение и газообмен4)Листопад

Answer 1

Ответ:

по моему 3) испарение и газообмен .Если ошиблась то извините

Answer 2

Processes Regulated by Stomatal Opening and Closing in Plants

Plants regulate various life processes through the opening and closing of stomata, which are small openings on the surface of leaves and stems. Stomata play a crucial role in the exchange of gases, water vapor, and the uptake of carbon dioxide for photosynthesis. Here are the processes that are regulated by the opening and closing of stomata:

1) Photosynthesis: Stomata control the entry of carbon dioxide (CO2) into the plant for photosynthesis, the process by which plants convert sunlight, water, and CO2 into glucose and oxygen. During photosynthesis, stomata open to allow the entry of CO2, which is essential for the production of glucose. The oxygen produced as a byproduct is released through the stomata [[1]].

2) Transpiration and Gas Exchange: Stomata also regulate the process of transpiration, which is the loss of water vapor from the plant through the stomata. When stomata open, water vapor escapes, creating a suction force that pulls water up from the roots to the leaves. This process helps transport nutrients and minerals throughout the plant. Additionally, stomata facilitate the exchange of oxygen and water vapor with the atmosphere, allowing for gas exchange necessary for respiration [[2]].

3) Regulation of Water Balance: Stomata play a crucial role in regulating the water balance of plants. When stomata open, water vapor is released, leading to water loss through transpiration. This loss of water helps to cool the plant and maintain its temperature. However, excessive water loss can be detrimental to the plant's survival. To prevent excessive water loss, plants can regulate the opening and closing of stomata in response to environmental conditions, such as high temperatures or low humidity [[3]].

4) Leaf Senescence (Leaf Fall): While stomata are not directly involved in the process of leaf senescence or leaf fall, they do play a role in the regulation of this process. Leaf senescence is a natural process in which leaves age and eventually detach from the plant. During this process, the stomata gradually close, reducing the exchange of gases and water vapor. This closure helps the plant conserve water and nutrients before the leaf falls off [[4]].

In summary, the opening and closing of stomata in plants regulate important processes such as photosynthesis, transpiration, gas exchange, and water balance. Stomata serve as gatekeepers, controlling the entry and exit of gases and water vapor, which are essential for the plant's survival and growth.