amino acid
Množina: amino acids
An amphoteric organic acid containing the amino group NH2; especially; any of the various amino acids having the amino group in the alpha position that are the chief components of proteins and are synthesized by living cells or are obtained as essential components of the diet
Building block of proteins; containing an amino group and a carboxylic acid group; SYN. aminoalkanoic acid.
One of many acids forming the principal ingredients of protein.
Water-soluble organic molecule, mainly composed of carbon, oxygen, hydrogen, and nitrogen, containing both a basic amino group (NH2) and an acidic carboxyl (cooh) group. They are small molecules able to pass through membranes. When two or more amino acids are joined together, they are known as peptides; proteins are made up of peptide chains folded or twisted in characteristic shapes.
Many different proteins are found in the cells of living organisms, but they are all made up of the same 20 amino acids, joined together in varying combinations (although other types of amino acid do occur infrequently in nature). Eight of these, the essential amino acids, cannot be synthesized by humans and must be obtained from the diet. Children need a further two amino acids that are not essential for adults. Other animals also need some preformed amino acids in their diet, but green plants can manufacture all the amino acids they need from simpler molecules, relying on energy from the Sun and minerals (including nitrates) from the soil. aminoacid
aminoalkanoic acid
aminokiselina
IPA: / aminokiselina /Organska kiselina koja nastaje kao krajnji proizvod razlaganja belančevina u procesu varenja.
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