How do plants absorb water

Plants continuously absorb and release water throughout their life. In this way, as a result of absorbing and releasing water, the growth and development of plants can be carried out normally. Water potential moves from high to low. In other words, depending on the difference in water potential, water is absorbed from the soil with the help of roots, the absorbed water is transferred up and to the side, and finally it evaporates to the outside environment through the leaves.

Plants absorb water from the soil by a process called osmosis.

Passive absorption of plants

Plant water absorption depends on the difference between soil solution potential and national internal water potential. In other words, because the water potential of the root cell is lower than the potential of the soil solution, it is possible to absorb water. Absorbed water is not only used by other plant organs, but also is released through the process of evaporation, so water absorption is continuous in plants. Water absorption mechanisms are divided into two categories: passive absorption and active absorption. When there is enough moisture in the soil and normal evaporation is taking place, the absorption of water as a result of the difference in water potential is called passive absorption.

Active absorption of plants

If the evaporation process is intense, the water potential of the mesophyll cells decreases and starts to draw water from the conduction bundles located in the veins of the leaf. As the amount of water in the leaf veins decreases, the water potential decreases. The leaf conduction set is directly related to the stem and rhizome conduction sets because the pressure created in the leaf veins begins to draw water from the bottom up, and at this point pressure also occurs in the base. With this pressure, plants absorb water from the soil. The driving force for passive absorption is the evaporation process, and the determinant of the water potential difference is the pressure potential developed in the transfer package. Absorption of water by roots can also occur without the participation of the evaporation process. Absorption of water by lowering the water potential by depositing inorganic substances in the permeation package is called active absorption. Active absorption intensifies when the evaporation process is low and causes national pressure.