About: http://webisa.webdatacommons.org/420536682

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	Because of their electrical nature, mineral ions--primarily sodium, potassium and calcium--maintain charges across membranes and carry electrical current in excitable tissues such as nerves and muscles.
http://www.w3.org/ns/prov#wasQuotedFrom	usda.gov