the net movement of molecules from a region of their higher concentration to a region of their lower concentration
An area of higher concentration to an area of lower concentration.
selectivy of the cell membrane
Diffusion
active transport
The molecules continue to randomly move as usual, but we observe no "net movement."
the net movement of molecules from a region of their higher concentration to a region of their lower concentration
molecules just flow
Yes, water molecules will move in an isotonic solution, however - there will be no net movement. This means that the movement of water molecules in one direction will be cancelled out by a movement in the other direction.
Diffusion is the net movement of molecules from an area where they are at a higher concentration to areas where they are at a lower concentration. This is due to the random movement of the molecules.
In all forms of matter the molecules have some movement, but to varying degrees.
The equal movement of molecules would be describing an "isotonic" state, where concentration gradients are equal, and a state of equilibrium is created.
An area of higher concentration to an area of lower concentration.
selectivy of the cell membrane
Diffusion
Solid.
The molecules of a solid state are tightly packed together. Movement of molecules is restricted to vibrating in their equilibrium position.