The directed movement of carbohydrate into, out of, within or between cells. Carbohydrates are any of a group of organic compounds based of the general formula Cx(H2O)y [goid 8643] [evidence IEA]; The directed movement of nucleotide-sugars into, out of, within or between cells. Nucleotide-sugars are any nucleotide in which the distal phosphoric residue of a nucleoside 5'-diphosphate is in glycosidic linkage with a monosaccharide or monosaccharide derivative [goid 15780] [evidence IEA]; The directed movement of nucleotide-sugars into, out of, within or between cells. Nucleotide-sugars are any nucleotide in which the distal phosphoric residue of a nucleoside 5'-diphosphate is in glycosidic linkage with a monosaccharide or monosaccharide derivative [goid 15780] [evidence IEA]; The directed movement of carbohydrate into, out of, within or between cells. Carbohydrates are any of a group of organic compounds based of the general formula Cx(H2O)y [goid 8643] [evidence IEA]; The chemical reactions and pathways involving carbohydrates, any of a group of organic compounds based of the general formula Cx(H2O)y. Includes the formation of carbohydrate derivatives by the addition of a carbohydrate residue to another molecule [goid 5975] [pmid 9644260] [evidence TAS]; The covalent alteration of one or more amino acids occurring in proteins, peptides and nascent polypeptides (co-translational, post-translational modifications). Includes the modification of charged tRNAs that are destined to occur in a protein (pre-translation modification) [goid 6464] [pmid 9644260] [evidence TAS]; The directed movement of nucleotide-sugars into, out of, within or between cells. Nucleotide-sugars are any nucleotide in which the distal phosphoric residue of a nucleoside 5'-diphosphate is in glycosidic linkage with a monosaccharide or monosaccharide derivative [goid 15780] [evidence IEA]; The directed movement of CMP-sialic acid into, out of, within or between cells. CMP-sialic acid is a substance composed of sialic acid in glycosidic linkage with cytidine monophosphate [goid 15782] [pmid 9644260] [evidence TAS]