OSMOSIS
OSMOSIS Osmosis is a naturally occurring phenomenon which happens without any expenditure of energy and one of the most important processes in nature. “It is a process where a weaker saline solution will tend to migrate to a strong saline solution.” OR In easy way: It is the movement of solvent molecules from the region of lower concentration to the region of higher concentration through a semi permeable membrane. Since water ( H 2 O ) is solvent in every living being, biologists define osmosis as the diffusion of water across a selectively permeable membrane. The complete process does not require energy in order to take place. SOME EXAMPLES OF OSMOSIS ARE: Ø Plants take water ( H 2 O ) and minerals from roots with the help of osmosis . The guard cells of a plant cell are affected by osmosis . When plant cell is filled with water the guard cells swell up for the stomata to open and let out excess of water. Ø ...