Residuo = Residue. A constituent structural unit (as a group or monomer) of a usually complex molecule. The part of a single sugar that appears in a polysaccharide; of a single amino acid in a protein; of a single nucleotide in a nucleic acid.
Péptido = Peptide. Biologically important polymers, in which amino acids are joined into chains through peptide (amide) bonds. By convention, shorter than 50 amino acids.
Nucleótido = Nucleotide. A purine or pyrimidine base bounded to a sugar and a phosphate ester. Unit from which nucleic acids are constructed by polymerization.
Metabolismo = Metabolism. The whole range of biochemical processes that occur within a living organism. Metabolism consists of anabolism and catabolism.
Lípido = Lipid. A natural substance that is poorly soluble in water but is soluble in organic solvents; lipids include fatty acids, triglycerides, phospholipids, waxes and some hormones and vitamins.
Catabolismo = Catabolism. The conversion of complex substances into more simple compounds by living cells, usually leading to the production of energy.
Anabolismo = Anabolism. The conversion of simple substances into more complex substances by living cells. Refers to those metabolic processes involved in the synthesis of cell constituents from simpler molecules.
Aminoácido = Amino acid. Any one of several organic compound containing an amino group and a carboxylic acid group on adjacent carbon atoms, that link together by peptide bonds to form proteins.
Riñón = Kidney. One of the paired organs that excrete urine, remove nitrogenous wastes of metabolism, reclaim important electrolytes and water, contribute to blood pressure control and erythropoiesis (via erythropoietin production).