Definitions [5]
Define diffusion.
Diffusion is the free movement of molecules of a substance (solute or solvent, gas, or liquid) from the region of their higher concentration to the region of their lower concentration when the two are in direct contact.
Example: Perfume fills a whole room.
Diffusion is the free movement of molecules of a substance (solute or solvent, gas, liquid) from the region of their higher concentration to the region of their lower concentration when the two are in a direct contact.
During the absorption of water, the continuous flow of water develops hydrostatic pressure in the living cells of the root. This is called root pressure.
The pressure developed in the roots due to cell-to-cell osmosis that helps push water upward through the xylem is called root pressure.
The loss of water in the form of tiny droplets from the tips or edges of leaves, especially during early morning, due to high root pressure is called guttation.
Concepts [8]
- Transport System in Plants
- Complex Permanent Tissue: Xylem Structure and Function (Conducting Tissue)
- Complex Permanent Tissue: Phloem Structure and Function (Conducting Tissue)
- Differences Between Xylem and Phloem
- Diffusion
- Forces Contributing to Ascent of Sap
- Root Pressure
- Factors Affecting the Rate of Transpiration
