Assertion: cell wall | /r/HasProperty | additional layer of protection
Facets:
value: to the cell membrane
type: TRANSITIVE-OBJECT
value: on top of the cell membrane
type: LOCATION
Source sentences:
text: The cell wall is an additional layer of protection on top of the cell membrane.
text: The cell wall acts to protect the cell mechanically and chemically from its environment, and is an additional layer of protection to the cell membrane.