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free toolbar & extensions word of the day help for webmasters: free content linking lookup box close vitamin also found in: dictionary , thesaurus , medical , acronyms , wikipedia .related to vitamin: vitamin b , vitamin b , vitamin k , vitamin d , vitamin d deficiency vitamin, group of organic substances
hopkins hopkins, sir frederick gowland, – , english biochemist, educated at cambridge and the univ. of london. he was professor of biochemistry at cambridge ( – ). ..... click the link for more information. that most foods contain—besides carbohydrates, proteins, fats, minerals, and water—other substances...
https://encyclopedia2.thefreedictionary.com/vitamin
contains membrane proteins , including integral proteins that go across the membrane serving as membrane transporters , and peripheral proteins that loosely attach to the outer (peripheral) side of the cell membrane, acting as enzymes shaping the cell. [ ] the cell membrane controls the movement of substances
as such, a large variety of protein receptors and identification proteins, such as antigens , are present on the surface of the membrane. functions of membrane proteins can also include cell–cell contact, surface recognition, cytoskeleton contact, signaling, enzymatic activity, or transporting substances...
https://en.wikipedia.org/wiki/Cell_membrane
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