Assertion: membrane's protein | /r/CapableOf | serve as channel
Facets:
value: to move materials
type: PURPOSE
Source sentences:
text: Integral proteins may serve as channels or pumps to move materials into or out of the cell.
text: Integral proteins may serve as channels or pumps to move materials into or out of the cell.
text: Integral proteins may serve as channels or pumps to move materials into or out of the cell.