To prevent gravitational force from attracting the particles of copper sulphate crystal causing the diffusion more faster.
to allow nutrient to enter for sustaining the cell; or to prevent bugs to enter
contagious diffusion, relocation diffusion, expansion diffusion, stimulus diffusion, hierarchical diffusion.
Diffusion in and out of the cells depending on the surounding environment keeps the cells from bursting with excess fluid.
diffusion
When cutting onions, cells are broken, releasing certain substances that are modified and then reach the eyes through diffusion, where they cause irritation on contact. To prevent the eyes from watering, you have to prevent the gas from reaching them - for example by cutting the onion underwater. Chewing gum might help a little if you chew with your mouth open and also breathe through your mouth. You will simply disturb the gas's diffusion this way.
Relocation Diffusion
Diffusion.
There are three forms of passive transport, or the movement of biochemical and other atomic or molecular substances across the cell membranes. They are: osmosis, simple diffusion or facilitated diffusion, and filtration.
simple diffusion, osmosis and facilitated diffusion.
Diffusion.
The difference between diffusion and facilitated diffusion is that facilitated diffusion is that the molecules pass through special protein channels.