What is the importance of osmosis in living things?

Question

please give me answers as soon as possible.

Answer 1

Importance? There wouldn't be living things without osmosis.

Osmosis is the transfer of "stuff" through a semi-permeable membrane. For food to get in and waste to get out, the living thing needs osmosis.  

Answer 2

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Osmosis is important in biological systems as many biological membranes are semipermeable. In general, these membranes are impermeable to organic solutes with large molecules, such as polysaccharides, while permeable to water and small, uncharged solutes. Permeability may depend on solubility properties, charge, or chemistry as well as solute size. Water molecules travel through the plasma cell wall, tonoplast (vacuole) or protoplast in two ways, either by diffusing across the phospholipid bi-layer directly, or via aquamarines (small trans membrane proteins similar to those in facilitated diffusion and in creating ion channels). Osmosis provides the primary means by which water is transported into and out of cells. The turgor pressure of a cell is largely maintained by osmosis, across the cell membrane, between the cell interior and its relatively hypo-tonic environment.

Answer 3

Osmosis is the net movement of water molecules from a region of higher concentration to a region of lower concentration through a partially permeable membrane. Water molecules moving through a partially permeable membrane only allows small molecules to past through. If living things doesn't have partially permeable membrane, large and small molecules will be able to past through.