Question

Корень выполняет функции: 1. Газообмен 2. Механическая функция 3. Транспирация 4. Проведение веществ 5. Запасание веществ 6. Фотосинтез 7. Всасывание воды и минеральных солей       

Answer 1

4, 5, 7 (видоизменения корня в частности запасают). (возможно и 2, не уверен)

Answer 2

2 (закрепление растения в почве), 4,5,7

Answer 3

Functions of the Root

The root of a plant performs several important functions that are essential for its growth and survival. These functions include:

1. Gas Exchange: The root facilitates the exchange of gases, such as oxygen and carbon dioxide, with the surrounding soil. This is important for the respiration process in plants.

2. Mechanical Function: The root provides structural support to the plant, anchoring it in the soil and preventing it from toppling over. It also helps in absorbing mechanical shocks and vibrations.

3. Transpiration: The root plays a role in transpiration, which is the process by which water is absorbed by the roots and transported to the leaves, where it is released as water vapor. This process helps in cooling the plant and maintaining its water balance.

4. Conduction of Substances: The root is responsible for the conduction of water, minerals, and other dissolved substances from the soil to the rest of the plant. It absorbs water and nutrients from the soil through its root hairs and transports them through the xylem tissue.

5. Storage of Substances: The root also acts as a storage organ for the plant, storing reserve substances such as starch, sugars, and other nutrients. These reserves can be utilized by the plant during periods of low nutrient availability or for growth and development.

6. Photosynthesis: In some plants, the root is capable of performing limited photosynthesis. Although the primary site of photosynthesis is the leaves, the root can produce small amounts of glucose through photosynthesis, especially in the presence of light.

7. Absorption of Water and Minerals: One of the primary functions of the root is to absorb water and minerals from the soil. The root hairs, which are tiny extensions of the root, increase the surface area for absorption and help in the uptake of water and essential nutrients like nitrogen, phosphorus, and potassium.

In summary, the root of a plant performs various functions, including gas exchange, mechanical support, transpiration, conduction of substances, storage of substances, limited photosynthesis, and absorption of water and minerals from the soil. These functions are crucial for the growth, development, and survival of the plant.