| 释义 |
essential amino acid
essen′tial ami′no ac′id
n. any amino acid that is required for life and growth but is not produced in the body, or is produced in insufficient amounts, and must be supplied by protein in the diet. [1935–40] Thesaurus| Noun | 1. | essential amino acid - an amino acid that is required by animals but that they cannot synthesize; must be supplied in the dietamino acid, aminoalkanoic acid - organic compounds containing an amino group and a carboxylic acid group; "proteins are composed of various proportions of about 20 common amino acids"arginine - a bitter tasting amino acid found in proteins and necessary for nutrition; its absence from the diet leads to a reduced production of spermatozoahistidine - an essential amino acid found in proteins that is important for the growth and repair of tissueisoleucine - an essential amino acid found in proteins; isomeric with leucineleucine - a white crystalline amino acid occurring in proteins that is essential for nutrition; obtained by the hydrolysis of most dietary proteinslysine - an essential amino acid found in proteins; occurs especially in gelatin and caseinmethionine - a crystalline amino acid containing sulfur; found in most proteins and essential for nutritionphenylalanine - an essential amino acid found in proteins and needed for growth of children and for protein metabolism in children and adults; abundant in milk and eggs; it is normally converted to tyrosine in the human bodythreonine - a colorless crystalline amino acid found in protein; occurs in the hydrolysates of certain proteins; an essential component of human nutritiontryptophan, tryptophane - an amino acid that occurs in proteins; is essential for growth and normal metabolism; a precursor of niacinvaline - an essential amino acid found in proteins; important for growth in children and nitrogen balance in adults |
Translationsessential amino acid
essential amino acid[i′sen·chəl ə′mē·nō ‚as·əd] (biochemistry) Any of eight of the 20 naturally occurring amino acids that are indispensable for optimum animal growth but cannot be formed in the body and must be supplied in the diet. essential amino acid
essential amino acidAn amino acid that is required for growth and development but that cannot be produced by the body and must be obtained from food. The essential amino acids are histidine, isoleucine, leucine, lysine, methionine, cysteine, phenylalanine, tyrosine, threonine, tryptophan, and valine. Synonym: indispensable amino acidSee also: amino acidessential amino acid an AMINO ACID that must be taken in via the diet, as distinct from nonessential amino acids, which can be synthesized by the organism itself, in a process called TRANSAMINATION, using the essential amino acids as a source. In humans there are ten essential amino acids: ARGININE, TRYPTOPHAN, ISOLEUCINE, METHIONINE, THREONINE, LYSINE, LEUCINE, VALINE, HISTIDINE and PHENYLALANINE.See EAA
See EAAessential amino acid
Words related to essential amino acidnoun an amino acid that is required by animals but that they cannot synthesizeRelated Words- amino acid
- aminoalkanoic acid
- arginine
- histidine
- isoleucine
- leucine
- lysine
- methionine
- phenylalanine
- threonine
- tryptophan
- tryptophane
- valine
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