micelle
micelle An aggregate of molecules in a colloid. For example, phospholipids in aqueous solution form micelles – small clusters of molecules in which the nonpolar hydrocarbon groups are in the centre and the hydrophilic polar groups are on the outside. The products of fat digestion are dispersed into micelles by the action of bile salts, which facilitates their absorption in the small intestine.
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1. (μ) From the Greek mikros meaning ‘small’, a prefix meaning ‘extremely small’. Attached to SI units it denotes the unit × 10−6.
2. In Earth… Small Intestine , small intestine The part of the gut between the stomach and the large intestine, comprising consecutively the duodenum, jejunum, and ileum. ‘Small’ b…
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