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===No energy without salts=== | ===No energy without salts=== | ||
All that does not answer how osmosis also makes life in water possible and so unique. Well, one clue might well be the facilitated exchange between 2 peculiar elements<ref>Sea water has an average salinity of about 3.5%, where salt is a mix of Sodium (Na+) and Chloride ions (Cl-), with other salts including Potassium ions (K+) in lower concentration.</ref> between the outside and the inside of any cell; an exchange that is primordial to their stability. Cells use small channel proteins at the surface of their semipermeable membrane (skin), that are basically holes able to open or close when the right elements knocks at the | All that does not answer how osmosis also makes life in water possible and so unique. Well, one clue might well be the facilitated exchange between 2 peculiar elements<ref>Sea water has an average salinity of about 3.5%, where salt is a mix of Sodium (Na+) and Chloride ions (Cl-), with other salts including Potassium ions (K+) in lower concentration.</ref> between the outside and the inside of any cell; an exchange that is primordial to their stability. Cells use small channel proteins at the surface of their semipermeable membrane (skin), that are basically holes able to open or close when the right elements knocks at the cell’s door (this is “selective permeability”). Thanks to omosis<ref name="wikisource">source: Wikipedia pages: | ||
<ul><li>https://en.wikipedia.org/wiki/Osmoregulation | <ul><li>https://en.wikipedia.org/wiki/Osmoregulation | ||
</li><li>https://en.wikipedia.org/wiki/Osmosis | </li><li>https://en.wikipedia.org/wiki/Osmosis |