About: http://webisa.webdatacommons.org/208228215

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	They form pores in the membranes of cells and selectively pass water molecules through the membrane, and prevent the crossing of sodium, potassium and other ions and small molecules.
http://www.w3.org/ns/prov#wasQuotedFrom	anaspec.com