Transportation in plants is the vital process of transporting or distribution of water molecules, essential minerals, food and other nutrients to different parts of the plants. In all, higher plants transportation play an essential role in their growth, development and for their survival. Different parts of the plant involved in movement or transport of water molecules and other essential nutrients are the roots, stem and the leaves.
Transport in plants occurs at three levels. Xylem and phloem are the two complex tissues which play a major role in the transportation process. Transport in plants occurs at three levels:
- Cellular transport
- Absorption of water
- Transfer of water and nutrients from the root to the highest part of the plant.
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Frequently asked Questions on CBSE Class 11 Biology Notes Chapter 11: Transport in Plants
What is ‘Cellular Transport’?
Cell transport is movement of materials across cell membranes. Cell transport includes passive and active transport.
What are xylem and phloem?
The xylem distributes water and dissolved minerals upward through the plant, from the roots to the leaves. The phloem carries food downward from the leaves to the roots.
What is the difference between hypertonic and hypotonic?
A solution will be hypertonic to a cell if its solute concentration is higher than that inside the cell and the solutes cannot cross the membrane. If a cell is placed in a hypotonic solution, there will be a net flow of water into the cell and the cell will gain volume.