Semipermeable membranes are used in osmosis. Semipermeable membranes let some molecules pass through them but not others, so they are partially or semi permeable. For example, the membrane may let smaller size molecules pass though but block larger molecules sort of like a sifter. Thus the two molecular substances can be separated.
Osmosis is the water molecules diffusion across the cell membranes. More informations can be find at en.wikipedia.org/wiki/Diffusion
Osmosis
Osmosis.
osmosis
"Flowing Through Membranes: Osmosis and Diffusion Explained"
All the actions of semiperiable membranes : surfaces that allow some materials to pass through but not others. USUALLY the term osmosis refers to membranes that pass water but not other substances.
The compound that allows materials to move through cell membranes by osmosis is water. Water moves freely through cell membranes to maintain osmotic balance within the cell.
osmosis
Diffusion ,osmosis
Diffusion ,osmosis
Diffusion ,osmosis
The biological theme - membranes - is explored in two ways thusly: permeable membranes and semi-permeable membranes.