| LACTALBUMIN | Amino acid-rich protein occurring in milk, commonly called whey protein (11) |
| SOYA | Rich protein derived from a bean |
| CASEIN | Main protein occurring in milk, precipitated by the action of the enzyme rennin; from Latin, ' cheese' ( 6) |
| RICIN | Highly toxic protein occurring in the seeds of the castor-oil plant in the family Euphorbiaceae (5) |
| ELASTIN | Protein occurring in ligaments and tendons |
| ZEIN | Protein occurring in maize (4) |
| RIBOSOME | Minute particle of RNA and associated proteins occurring in all living cells; the site of protein synthesis (8) |
| LACTOSE | White crystalline disaccharide sugar occurring in milk, obtained by evaporating whey (7) |
| SMARTDRINKS | Beverages with amino acids and vitamins |
| GENETICCODE | Sequence of amino acids |
| NIACIN | Vitamin of the B complex, occurring in milk, liver and yeast |
| TAURINE | Sulphur- containing amino acid important in the metabolism of fats, first discovered in ox bile in 1827 (7) |
| DOPA | Amino acid that is formed in the liver and converted into dopamine in the brain. |
| LDOPA | Amino acid occurring naturally in the body used to treat Parkinson's disease |
| GLYCINE | Simplest naturally occurring amino acid, present in most proteins; from Greek, 'sweet' (7) |
| THREONINE | Amino acid that poultry is rich in (or, by the sound of it, 309) |
| SEQUENCE | Order of the amino acids in a protein or of nucleotides in DNA etc. (8) |
| ALANINE | Amino acid used in protein biosynthesis |
| TRNA | The form of RNA that attaches the correct amino acid to the protein chain that is being synthesized at the ribosome of the cell (according to directions coded in the mRNA). |
| GLUTAMINE | Amino acid in excess: a rich source |
