Question:
The real forces responsible for the movement of water from one cell to another cell is mainly
The real forces responsible for the movement of water from one cell to another cell is mainly
Updated On: Sep 4, 2024
- osmotic pressure (OP)
- turgor pressure (TP)
- diffusion pressure deficit (DPD)
- imbibition
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The Correct Option is C
Solution and Explanation
The net force with which water is drawn into a cell is equal to difference of $OP$ and TP, known as diffusion pressure deficit or suction pressure. DPD of pure water is maximum $(\approx 1236\, atm )$ solvent moves from cell of low DPD to high DPD. DPD, or $S P=O P-T P$
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Transport of Water and Minerals in Plants
Transportation is the process of movement of water and minerals to all parts of the plant body. Plants have a specialized system that enables them to distribute water and nutrients throughout their body. They use several processes such as translocation, absorption, storage and utilization of water.
Transportation in Plants:
The water and minerals are transported in plants by two types of conducting tissues:
- Xylem: The xylem distributes water and dissolved minerals upward through the plant, from the roots to the leaves.
- Phloem: The phloem carries food downward from the leaves to the roots.
The three modes of transportation:
- Diffusion: The molecules in this system travel from a high-concentration region to a low-concentration region. This procedure does not necessitate the use of any energy.
- Facilitated diffusion: With the help of a carrier, usually a protein, the mechanism transports molecules from an area of higher concentration to a region of lower concentration. Because this process does not require any energy, it is referred to as a passive process.
- Active Transport: With the help of membrane proteins, this mechanism transports molecules from a lower to a higher concentration region. Because it requires ATP to function, this system is referred to as active transport.