essential amino acid
Must be eaten
An essential amino acid is one the body cannot synthesize and must obtain from food.
Humans require nine essential amino acids; without adequate dietary intake, protein synthesis fails and health deteriorates.
Complete proteins contain all essential amino acids.
The term distinguishes these from nonessential amino acids, which the body can produce on its own.
Essential amino acid
- leucineEssential branched-chain amino acid
- isoleucineEssential branched-chain amino acid
- methionineSulfur-bearing essential amino-acid
- phenylalanineEssential protein component
threonine · tryptophan · valine · histidine · dietary · protein source · deficiency · complete protein
Protein synthesis site
- tRNAAmino acid transporter molecule
- mRNAGene's working copy
- codonBase triplet encoding amino
- polypeptideAmino acid polymer
translation · transcription · peptide bond · genetic code · protein synthesis · side chain · chirality
Utterly required, irreplaceable
- exogenousOriginating outside the system
- non-negotiableCannot be altered
Biological wound healing process
- hemoglobinErythrocyte's oxygen-binding protein
- collagenStructural body protein
- keratinStructural hair protein
- growthIncrease in size
lysine
Essential amino acid
- leucineEssential branched-chain amino acid
- isoleucineEssential branched-chain amino acid
- methionineSulfur-bearing essential amino-acid
phenylalanine · threonine · tryptophan · valine · histidine · dietary · protein source · deficiency · complete protein · bioavailability
ribosome
Protein synthesis site
polypeptide · translation · transcription · peptide bond · genetic code · protein synthesis · side chain · chirality
indispensable
Utterly required, irreplaceable
- exogenousOriginating outside the system
- non-negotiableCannot be altered
tissue repair
Biological wound healing process
- hemoglobinErythrocyte's oxygen-binding protein
- collagenStructural body protein
- keratinStructural hair protein
growth · recovery · anabolism · immune function · wound healing
- amino acidsalanine, arginine, asparagine, cysteine, glutamine
essential, amino, essence, essentially, essentials, inessential, amines, amino acids, acidic