What is the role of osmosis in the transportation of water in plants?

Question

Answer

Osmosis is responsible for the ability of plant roots to draw water from the soil. Plants concentrate solutes in their root cells by active transport, and water enters the roots by Osmosis. Osmosis is also responsible for controlling the movement of guard cells.

Answer

In plants, water transport minerals salts through special tubes called xylem. ... They absorb water by the process of osmosis. Osmosis is the movement of water molecules (solvent) from a lower concentration solution to a higher concentration solution through a semi permeable membrane.

Answer

**The Role of Osmosis in the Transportation of Water in Plants**

Osmosis plays a crucial role in the transportation of water in plants. It is a process by which water molecules move from an area of higher water potential (lower solute concentration) to an area of lower water potential (higher solute concentration) across a selectively permeable membrane. This movement of water is essential for plants to absorb and distribute water throughout their tissues.

**Root Absorption**

- Osmosis is responsible for the absorption of water by plant roots. Water from the soil enters the root hair cells through the process of osmosis. The root hairs contain a higher concentration of solutes than the surrounding soil, creating a lower water potential in the root hairs. As a result, water moves from the soil into the root hairs through osmosis, aiding in the uptake of water.

**Root to Stem Transport**

- Once water is absorbed by the root hairs, it travels through the root cells and into the xylem vessels. The movement of water from the root to the stem is facilitated by osmosis. The xylem vessels have a higher solute concentration than the root cells, creating a lower water potential in the xylem. Water moves from the root cells into the xylem vessels through osmosis, allowing for upward transportation.

**Transpiration Pull**

- Osmosis also plays a role in the phenomenon of transpiration, where water is lost from the leaves through small openings called stomata. As water evaporates from the leaves, it creates a negative pressure or tension in the xylem vessels. This negative pressure pulls water up from the roots through osmosis, resulting in a continuous flow of water from the roots to the leaves.

**Leaf to Air Exchange**

- Osmosis is involved in the movement of water from the leaf cells to the surrounding air. As water evaporates from the leaf surface, it creates a concentration gradient between the leaf cells and the air. Water moves from the leaf cells, which have a higher water potential, to the air with lower water potential through osmosis. This process, known as transpiration, aids in the cooling of the plant and the transport of nutrients throughout the plant.

In conclusion, osmosis plays a vital role in the transportation of water in plants. It allows for the absorption of water by the roots, the movement of water from the roots to the stems and leaves, and the exchange of water between the leaf cells and the surrounding air. Osmosis is essential for maintaining the water balance in plants and facilitating their growth and survival.

Answer

It help root hair to observe water from earth !

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