transport ion transport GO:0006811 Reactome:REACT_102356 Reactome:REACT_102895 Reactome:REACT_106972 Reactome:REACT_109067 Reactome:REACT_110862 Reactome:REACT_19397 Reactome:REACT_29110 Reactome:REACT_31978 Reactome:REACT_33992 Reactome:REACT_34201 Reactome:REACT_79109 Reactome:REACT_82618 Reactome:REACT_87822 Reactome:REACT_91472 Reactome:REACT_91958 Reactome:REACT_92903 Reactome:REACT_93485 Reactome:REACT_94357 Reactome:REACT_96078 Reactome:REACT_96919 Reactome:REACT_98077 The directed movement of charged atoms or small charged molecules into, out of or within a cell, or between cells, by means of some agent such as a transporter or pore. biological_process