Assertion: liposome's lipid | /r/MadeOf | acid
Facets:
value: chemically
type: MANNER
value: at the polar head group
type: LOCATION
Source sentences:
text: The lipids typically include one or two hydrophobic acyl hydrocarbon chains or a steroid group, and may contain a chemically reactive group, such as an amine, acid, ester, aldehyde or alcohol, at the polar head group.