What is cell permeability?
Answers
Answer:
Explanation:The permeability of a membrane is the rate of passive diffusion of molecules through the membrane. These molecules are known as permeant molecules. ... The inability of charged molecules to pass through the cell membrane results in pH partition of substances throughout the fluid compartments of the body.
Cell Permeability -
When membranes permit or restricts the movement of substances than it is called cell permeability or simply permeability.
On the basis of permeability membranes are of four types -
1. Permeable Membrane - Such membrane is permeable for both solute and solvent (water).
Example- Cellulosic cell wall of living cell.
2. Semi-permeable Membrane - Such membrane allow diffusion of solvent but does not allow solute.
Example - Artificial Membranes.
3. Selectvely Permeable Membrane - Such Membrane allow some selective solute to pass to them along with a solvent.
Example- Tonoplast or Vacuole membrane.
4. Impermeable Membrane - Membrane which do not allow solute and solvent both to pass through it.
Example - Cell wall of non living cells.