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noun Protein n. (Physiol. Chem.) Any polymer of an amino acid joined by peptide (amide) bonds. Most natural proteins have alpha-amino acids as the monomeric constituents. All classical enzymes are composed of protein, and control most of the biochemical transformations carrie dout in living cells. They may be soluble, as casein, albumins, and other globular proteins, or insoluble (e. g. "structural proteins"), as collagen or keratin. "albumin", an older term for protein, is now used primarily to refer to certain specific soluble globular proteins found in eggs or blood serum, e.g. bovine serum albumin, the main soluble protein in teh serum of cattle, used as an enzymatically inert protein in biochemical research. Note: In the 1913 dictionary, protein was defined as: "A body now known as alkali albumin, but originally considered to be the basis of all albuminous substances, whence its name." Protein crystal. (Bot.) See Crystalloid, n., 2.
Collaborative International Dictionary of English 0.48
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"Protein" Quotes from Famous Books
 ... of protein are small. Roughly speaking, the food of these negroes furnished one-third to three-fourths as much protein as are called for in the current physiological standards and as are actually found in the dietaries ...
— The Negro Farmer • Carl Kelsey
... teach him that mineral fertilizer may keep up the fertility of the soil where clover grows luxuriantly and occurs in the rotation at definite intervals. Feeding cattle will not teach him that a good ration for milch cows is one containing one pound of digestible protein to seven pounds of digestible carbohydrates, provided it is palatable and, at least, two-thirds of the total ration is digestible. Nor will the feeding of such a ration teach the farmer how to calculate the most economical ration from feeding stuffs at current prices. ...
— The Young Farmer: Some Things He Should Know • Thomas Forsyth Hunt
... nutritive elements of foodstuffs are protein, a little mineral matter, fats, and carbohydrates. Protein is the basis of muscles, bone, tendon, cartilage, skin and corpuscles of the blood. Fats and carbohydrates supply heat and muscular energy. In other words, ...
— Scouting For Girls, Official Handbook of the Girl Scouts • Girl Scouts |
Words linked to "Protein" : simple protein, filaggrin, protein molecule, supermolecule, opsin, mild silver protein, C-reactive protein, meat, nucleoprotein, plasma protein, enzyme, PSA, iodoprotein, protein folding, actomyosin, phosphoprotein, amino acid, proteinaceous, silver protein, cytokine, high-protein diet, gluten, proteome, prostate specific antigen, fibrin, recombinant protein, aminoalkanoic acid, macromolecule, compound protein, ferritin, conjugated protein, growth factor, aleurone, egg, apoenzyme, legume, eggs, milk, antibody, iodinated protein, polypeptide, haptoglobin |
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