Assertion: active transport | /r/UsedFor | refer to movement of materials
Facets:
value: to an area of higher concentration
type: TRANSITIVE-OBJECT
value: from an area of lower concentration
type: LOCATION
value: against the concentration gradient
type: TRANSITIVE-OBJECT
Source sentences:
text: Active transport refers to movement of materials from an area of lower concentration to an area of higher concentration, against the concentration gradient.